I bought my 3570K, Asrock Z77 extreme4, Samsung DDR3 1600, and Crucial M4 yesterday. This will be my first build and I'd like to do it right. However, I still need a case, power supply, and video card. I'm looking to spend ~$350 total for the three parts. I mostly play games (diablo3, LoL, fps's). I might do some overclocking but more than likely not anything heavy. I'd like the PSU to be modular if possible. I don't really have any preference on the case - the corsair obsidian looks amazing, I just wish it were a fourth of the price
I don't really have a site preference. As long as they can get it to me by Friday it should be ok. I do have an amazon prime account though so that may help.
Case-wise I'd go with any of NZXT's creations. I myself own an NZXT Lexa S and am in love with it. It's really roomy, has a great cooling system (easily upgradible to liquid cooling if you want), has very efficient wire-routing, and it's only $80. Also, if you find yourself wanting to upgrade in the future, it has 11 drive bays for expansion.