Thanks for the ideas Barnhart Gallery. I hadn't thought about putting the couch in that position, although it totally makes sense for TV viewing without problems from light reflecting from the window. Love the idea of bookcases under the window! I like the rug too - where did you get it from? I'll check into the Norman Wyatt art - I love anything with trees. Thanks again!

What colour could be used for accents? Any ideas for coffee tables or side tables? Not sure where to put lamps - and definitely will need some in this room - it's a bit on the dark side with just the one small window.

Glad you like it! The rug is at Home Decorators. And I'd shop around or make a better roman shade -- don't love the above one but was hurried and wanted to give you the idea. There's a Carlisle Paisley at Best Window Treatments --the one with more green in it -- that works with your colors nicely, and they can do a few toss pillows as well.

With all of the beiges, grays, taupes, and mauves in your fireplace, the black of the TV and FP, and sage green that you want to add, I wouldn't be looking for an additional accent color and would stay within this already diverse palate.

I saw this lamp yesterday while looking for a copper floor lamp for Spoffy (have you seen the monster fireplace thread?) and while I didn't find what I had in mind for him, now that you ask, there was a great looking indoor outdoor one that might look great here, although I wish it had a drum shade:
http://www.wayfair.com/Patio-Living-Concepts-Phoenix-Outdoor-Floor-Lamp-in-Antiqued-Copper-with-Black-Sunbrella%AE-Shade-53927-PCN1128.html
It also comes in a table lamp size.

I could see something like Pottery Barn's Ava or Tanner console and coffee tables -- the console at the open back of the sectional if you find you have room there. And I'd also consider painting out the railing the color of the walls if it's not part of a larger area we can't see.

Is the railing on the left side needed? Do you like that Americana-country style? It seems to restrict entry to the living room.
I would actually place a scaled down L-shaped sectional on the wall with the window for that very reason. Otherwise the entrance to the living room seems tight, like you'd have to zig and zag around the furniture to move through the room, from what I can tell from your photos. Stay away from furniture that's too chunky or has big, rolled arms which waste space.

I would keep furniture light color and use pillows for your color maybe a side chair with some color tv on wall or functional console table not tv stand

Thanks for the ideas everyone. I'm starting to think that maybe I want to downplay the black in the room. We actually considered moving the TV to the basement and keeping this room TV-free. Is there any way to downplay the black in the fireplace? I want the room to feel more rustic than country (Writely Yours) and black tends to feel more modern/traditional. The railing separates the kitchen from the living room along a step. I really don't like the railing, although our kitchen table (which is right beside it) is solid oak and the same colour and is country-ish. I would love to remove the railing, but there is laminate flooring built around it and not sure how that could work. Also - don't want to be falling off the kitchen into the living room. Suggestions?

Yes - I'm starting to think that a sage green couch may not work at all. I just love that colour and want the room to have that "outdoorsy" feeling somewhat.

Here are some decorating schemes to go with your fireplace stone if you keep it as is. Of course you could paint it for a monochromatic white-on-white look. You could also replace the stone mantel with a timber that goes across the whole wall, or add faux timbers to the ceiling. If you want a rustic look consider cladding the walls with horizontal planking or in rustic panels as in these photos:
Eclectic Family Room by Birmingham Interior Designer Tracery Interiors

Eclectic Living Room by Other Metro Interior Designer CIH Design

Eclectic Family Room by Essex Junction Photographer Susan Teare, Professional Photographer

Eclectic Living Room by Palo Alto Architect Tali Hardonag Architect

I think every room needs some black in it ....

Love the idea of planking. Love the pictures - especially Tali Hardonag's rooms. Thanks for the links. We do want to keep the stone as it is - my husband loves it and it is beautiful up close. A wooden mantel would be perfect though.

I need to put mantel over my fireplace, don't know how it is attached? It had ugly shelves around it and now is waiting for one. Here is a picture. Sorry not very good one.

Anyone?

Existential...we call this "threadjacking". Regular commenters often do it to contact and alert another commenter to a posting that needs them..or because we "know" one another here on Houzz. But to get input on your own design dilemma, you need to start your own post. OK?

Sorry, I thought it was a similar problem, so added on. Thanks for the etiquette lesson. How can I take it off now and put it in alone?

I don't think there's anything wrong with someone mentioning they have a similar dilemma as is being discussed in a thread, as long as the person who posted the original question somehow benefits from the wider discussion. You never know what will spark an idea or a solution - maybe seeing a similar problem/challenge will provide a new or helpful perspective. Maybe a keyword that is used in their description will help the thread rank higher in search results - thereby attracting more problem-solving participants to the discussion. Those are positive outcomes of openly sharing our dilemmas with each other. Just like a good face-to-face conversation among a group of people, anyone should be able to make a polite inquiry or compare their situation to another.

With that said, the newcomer with a similar issue should demonstrate courtesy by stating that they are not trying to hijack the conversation, but will be following it for possible ideas to solve their dilemma as well.

Thank you for your comment, Writerly. I can't figure out how to move it in one piece. Will try to start a new post. The only thing I could do is delete it, but perhaps that is not necessary, as then the other comments won't make sense. As a newbie, I will try to be more careful next time I post.