My new rig that didn't cost an arm and a leg:  (just an arm)

Asus M2R32-MVP  580x Crossfire chipset
2GB Corsair XMS2 DDR2800 Dual Channel RAM
AMD Athlon 64 X2 6400+ Dual Core
Two ATI Radeon 512mb x1950pro's hooked together in Crossfire
bgears b-enspirer 8 channel HD audio
250gb Sata2 HD
DVD/DVD-RW
1100 watt Tagan ITZ PSU
and a Raidmax case


after it was all said and done it was about $1600

This is my first Multi-GPU build, and it leaves room to upgrade to DX10 cards next year or whenever Vista doesn't suck.