My current rig specs:

Gigabyte K8NSNXP Motherboard
AMD64 3000+ CPU @ 230 FSB, 10 Multi = 2.3Ghz
1GB OCZ EL Platinum Rev2 Dual Channel Kit (2-2-2-5)
BFG 6800GT OC
2x 200GB WD SATA Hard Drives (RAID 0)
1x 180GB WD SE IDE Hard Drive
CD/DVD RW Drive
Koolance Watercooling
3Dmark 2001se 22727

The OCZ memory is probably to most significant upgrade so far. This memory is absolutely amazing in regards to speed. I'm replacing the motherboard with a DFI Lanparty UT nF3 250GB.

Here are pics of the timings, overclocking, and temps using the Gigabyte motherboard. After I upgrade and benchmark, I'll post more pics.