HAF 912 / HAF932
Corsair 650TX V2 / Corsair 750HX
2500k
Thermaltake Frio(if you're not gonna OC) - Noctua 6 NH-D14(if you're gonna OC)
ASUS Z68 P8Z68-V PRO (Z77 motherboards are coming out at the moment, so maybe look for an ASUS P8Z77-V PRO if you want a more "futureproof" mobo)
2x4gb pc12800 ram @ 1600mhz - I can recommend Corsair Dominator or G.Skill Ripjaws
EVGA/MSI GTX570 or GTX560 Ti
Wester Digital Caviar Black 1TB / SpinPoint F3 1TB
Some random 24x SATA DVD+/-RW drive

If you want SSD's, look for Intel 510 Series 120GB or OCZ 120gb Vertex 3