Hello,
It sounds like you have some great stuff to start with!
I think you do need to change it up a bit or it can end up somewhat monotenous and you will get tired of it.

I would choose a color palette with a few different colors, (I think everyone needs some color in their home, it makes you feel good!) and not paint the whole house a single color.

Pine takes stain so beautifully and the grain takes on different looks with different intensities of stain. I think it would be beautiful to stain the floors a medium brown, like Min Wax's Provincial. To create more interesting interiors, you need lots of textures and layers. This is why I would stain the trim (baseboard, casings, all moldings) and doors a different shade, maybe a darker "dark walnut" or if you like a dark wood, even look at jacobean (minwax). If you lean more towards a lighter wood, look at using Early American for the floors and Natural for everything else. If you want to reduce the amount of wood to lighten up your space a bit, you could consider painting the trimwork and doors white. If you go this route, still stain the woodwork on the ceiling. This will be a beautiful contrast.

The pine on the ceiling could be stained to match the trimwork and doors.

You can put the same slate throughout, if you want, but if you do I would consider using different patterns in different areas. Maybe lay the kitchen on the diagnol, the entry brick style, the bathrooms in a versaille pattern
(http://www.crossvilleinc.com/palais/av141_ideas.html). If you have the choice to choose different colors, I would change it up a bit, even if you just do 1 color for the kitchen and baths and another for the entryway.

Here is a color combination to check out:
These are Benjamin Moore colors.

Shaker Beige HC-45 (Family/Living room)
Ashley Gray HC-87 (entry)
Woodlawn blue HC-147 or wedgewood gray HC-146(kitchen)
Ceilings in White dove

If you prefer a green over a blue shade, look at Guilford green HC-116 for the kitchen. You can use this in the bathroom as well.

Keep us posted and Good Luck!

je

Here is a link that might be useful: haute home

Dirtslinger - post some photos and you will get more responses.

Did you build this house? Sounds like it has good bones.

Stain the baseboards and the floors the same color and finish.

I have a slate foyer that I just repainted (it was painted when we moved in, nothing left to do but paint it again). I like it very much. If it's not too late, though, may I suggest wood flooring in the kitchen? It's much easier on the legs and feet than slate if you do any cooking. I don't know about pine for durability, but my oak has held up beautifully with virtually no maintenance.

Good luck and have fun. I'll follow along....

Pine does not take stain nicely (evenly). Use a prestain conditioner, thinned coat of varnish or shellac before staining. A gel stain helps, but you've got a lot of sf to cover so may have to use a liquid (penetrating) stain. Post pictures and we may be able to help you more. Pine floors will be distressed in no time since it's a soft wood. I'd use the same slate throughout to avoid it looking choppy, there's enough variation in natural slate to keep it interesting IMO.

I'm not an expert on wood, so will leave that to those that know. Have you looked on the web or in magazines to find some inspiration photos. If you snag a cup of coffee or whatever at Borders, they usually have a great selection of magazines you can browse through. There are log cabin and similar magazines that can help you get ideas. Also, just Google under Images for "Cabin Decor" and there are lots of pictures. Don't know where you are located, but our (Roseville, California) RC Willey store has a whole section dedicated to the rustic cabin look and it is awesome...very masculine yet comfy/cozy. Here is a picture from their website...I think leather is always a good fit for that cabin look.

Here is a link that may help.
BlackForestDecor

Take a look in your closet to get ideas for color for walls that way you'll know what you like.
As for floors and other wood I prefer there to be some contrast between floors and the window/door trim and kitchen cabinets. The ceilings that are pine would look best light for me, but I have seen them dark that look great too. Unless they are high though dark ceilings can give you a closed in feeling.
Do you have any photos of the home yet, or is it not that far along yet?

Thank you!
Will try to post some photos late today. It is within 2 weeks of "finishing" carpentry and have left this to last minute. Pine floors were a last minute decision that I see effect everything.

There is a lot of natural light, so the floor stands out. I have ordered waxed but not stained pine flooring, natural unstained pine seems too beautiful to change. Same with the tongue and groove ceiling area, unstained.

I'd keep the floor and ceiling in a natural pine color and stain trim and doors darker. This gives it some variation vs. haing all the same. I would also consider some other colors that would bring out the wood tones and compliment them better than beige would. Beige is a neutral, but not always the best color with lots of wood.

Greens tend to go really well with wood tones. Might want to take a look at Benjamin Moore's "flowering herbs". Depending on the light it will have different tones to it, but I've seen it with lots of wood and it looked awesome.

We have darker stain on our patio/front door and light color pecan floors. My old house had the same thing. Crown and baseboards were dark stain and the floors a natural red oak.

Don't do waxed floors - it doesn't stand up to traffic, even if you don't wear shoes in the house. I waxed my oak treads, now you can see spots where people walked with bare feet (oils), wet feet coming out of the shower, and drips where DD's hair dripped out of the shower, and we haven't even been here 3 yrs yet. It's not like waxing a car where the water just beads up. I'm going to strip the treads this summer when DS is at camp (send DD to grandma's, DH and I will sleep on sofabed), and varnish them with Waterlox. Unlike poly, Waterlox is supposed to touch up well (what I originally wanted for the stairs). You *could* wax the trim since that won't take as much abuse as floors and you can easily rewax when they get dried out or scuffed. Again, I would use Waterlox on the ceiling since you don't want to have to wax that after it dries out in the heat and sun. My cousin used Waterlox on the original pine floors in the family farmhouse (built in 1743, don't know when the 2nd floor was added but b4 1912 when my great-great-grandpa bought it) and they look amazing.