My setup

i7 860 @ 2.80ghz
GA-P55-UD3 Motherboard
Geil 8gb DDR3 Dual Channel RAM @ 1333 mhz
5870 ATI 1gb Graphics Card
Seagate 1TB HDD
Western Digital 2TB HDD
Western Digital 500GB external Hard Drive
Antec 900 2 Case with 5 fans
Windows 7 64bit

Razer Deathadder mouse 3500dpi
Razer Lycosa keyboard
Samsung 24" Monitor, 1080p
Logitech 5.1 Speaker system

Upgrades:
4870 > 5870
Addition of a fifth fan installed on the side of the case
Kingston 4gb Dual Channel @ 900 mhz > Geil 8gb Dual Channel RAM @ 1333 mhz