I think there's a new 780i board from ASUS, called the ASUS P5N-T Deluxe. Link - ASUSTeK Computer Inc. - P5N-T Deluxe
Haven't done this in a while. May I suggest:
Case - Lian-Li PC-A70B Full Tower
Processor - Intel Core 2 Quad Q6600 G0 OEM
Motherboard - XFX MB-N780-ISH9 nForce 780i SLI
Memory - Crucial Ballistix Tracer 2GB (2 x 1GB) DDR2-800
Graphics cards - EVGA 8800GTS 512 x2
Power supply - PC Power and Cooling Silencer 610W
Hard drive - Seagate Barracuda 7200.11 750GB
Optical drive - ASUS Black 20X SATA DVD Burner
Heatsink - Thermalright Ultra-120 Extreme w/Cooler Master 120mm 2-fan pack (for push/pull method)
Monitor - Gateway FHD2400 24" 3ms
Keyboard - Logitech G11
Mouse - Logitech G5 w/ the two side buttons
Sound card - Creative Sound Blaster X-Fi XtremeGamer 7.1
Speakers - Logitech THX Z-5300e 280 Watts RMS 5.1
Around $2,900-3,000.
thats what i was thinking only make the xtremegamer a fatality cuz then you get the x-ram or w/e
and then z-5500 and a g15 instead of g11 and a g7 instead of g5
and RAID 0 two of those HDD's