I'm partial to silverstone and lian li's.. They cost more but you get more.
I would rather wait 2 weeks and put an extra paychecks worth of savings into my project and not have to compromise a componant.. a year from now you'll wish you had.
Also I'd recomend going SLI or Crossfire because down the road even if you have an out of date card you can throw in another (wich will be alot cheaper) to have a performance increase without shelling out 500$ for a new top of the line card.
Temjin TJ06S-W
Maybe a little more than you planned but a nice case.. I'd lose the air dam thingy but thats me. Comes in black and silver. Tool Free-
Temjin TJO5B-W
Another damned nice Silverstone case, very nice room for expansion.Black&Silver. Tool Free-
Silverstone Home
They have directions for setup available for download.
Lian Li 60Aplus
A solid, Nice Case. Cheap for aluminum. Tool lite-
These cases are top of the line, you can mod them yourself a little later with lights and what not, but these cases give you a solid base to work off of, and they will serve you well for a good ways to come.
If you get a Silverstone case get extensions for your power supply cables.
Oh, and I wouldn't go for the antec lanboy, I have heard bad stories.
edit:
Spire swordfin
I'm getting this case to try it out.. looks promising and cheap as hell.