Recently upgraded to a dual core system but nothing special- plays games great and wizzes along though compared to my single core build
I also have a an ANTEC 900 whcih i think is ace
Hiper 580w power supply
A8n sli premium mobo(939 chipset)
4400+ with auto overclocking set at 10% for gaming
2gb of Ram
Palit 7900gs graphics card(OC about 20/30% depending on game)
1 x 160gb WD SATA 2 drive
1 x 400gb maxtor SATA 2 drive

Case keeps everything so cool along with me freezer pro on the cpu.
powersupply works great at the bottom the case btw- better than at the top imo