Like the title states, lets see what everyone is working with around here...
AMD Athlon 64x2 Dual Core Processor 6000+ 3.0Ghz (bought it about 4 years ago, still works beautifully for gaming)
4 Gb ram (might go up to 8 on black friday, I don't know yet)
NVIDIA GeForce GTS 450 1 Gb video memory
Western Digital 1 Tb Hardrive (forgot which one exactly)
Razer Carcharias Gaming Headset (cost me $80 but SO worth it)
Walmart mouse and keyboard (low tech but they do their job!)