How do you decorate a 14 year old girl's room?

ok. so I'm not a prep.
I don't like pink.
we're building a new house and I'm going to have my bedroom down in the basement so I'll be away from everybody.
I want dark colors.
or actually...
red black and white.
NO BUTTERFLIES OR ANY OF THAT CRAP.
it's...

gonna be moderatly big, but no black walls because that'd make it look smaller. and I'm claustophobic. DX

so I need looots of detail.
not just something like oh. red walls black bed white floor.

I'm gonna have hardwood on the floor anyways.
dark I'm pretty sure. to give you an idea.
there'll obviously be a window so I need curtain ideas too
so if you have pics for ideas and stuff, or you could just give me a lot of detail, that'd be awesommme .
thanksss :]

Well, if money is no option this would look awesome:

Dark hardwood floors
White furniture
Black wrought iron bed with white sheer flowing canopy/scarves
Red, black and white patterned comforter set
Black rugs
Sheer flowing white curtains
White wallpapered walls with little black designs
A few red accents, like toss pillows on the bed or a red picture/painting on the wall

A very sophisticated look you'll never outgrow without a single butterfly or ounce of pink.

this is home and garden, not bedroom and freak out
Forget the curtain, let the world see your colors!
Don't be wimp, show your stuff, be you!, be free!

I think purple would be an exellent colour for your room
its not too dark and not too light either