These are brushed nickel with clear glass...would blend nicely and give a little bling.

Black hardware and black outlet and cover plates.

I have black cabinet knobs (stained dark cherry) and seriously hate them-- very distracting (all 34 of them). I'm looking to change mine out, and I like some of the brushed nickel ones, or stainless, that I've seen-- contemporary-- but I also really like some of the glass ones (in soft colors, like gray, or clear glass) and/or lucite ones a lot, too. There's something about glass or lucite that really seems to elevate things. I like the ones pictured above. I would not get black hardware, though. You will regret it-- very obtrusive.

I have to say that Black outlet covers would not be a great idea. Instead try to blend you outlets/covers with the same color as your tile, which should be easy. Regarding the handles, just bring different one home and hold up on doors and drawer fronts. I agree with dianahb that some glass or Lucite with brushed nickel would be elegant. Your kitchen is very attractive.

Nice kitchen. I agree that brushed nickel would be nice.

I think any of the ideas above would be nice but my choice would be something like these. Also would suggest stainless for your outlet plates - that's what we used against marble and it blends
http://houzz.com/photos/1293938

What colour/finish are the range and hood?

Hi andreasson123 -- Good advice so far; I also like anthropologie for unique choices. I wanted to suggest aligning your corner cab shelves with the mullions in the glass door in your 2nd photo, even if you need to rearrange your dishware. Pretty kitchen -- nice job so far.

I think an oiled bronze finish would look fantastic. It will compliment the counter top color nicely and balance out what I am assuming will be a stainless range and hood.

This is "Modern Bronze" from Atlas Hardware

Get outlet covers to " disappear", other hardware any of the above. If getting glass maybe get spares in case you drop a pot on one and it breaks.

I recently see something might look nice for you. Here it is: