yeah I know, notice my comment about adding in the 4 cards for the Skulltrail board?
but when it comes to DC projects like R@H, WCG, Dnet, SETI, etc etc etc, many of those don't have GPU clients, so in those cases 2 or more Quad cores will be more useful.
thats why I suggested the other Socket F board, it loses 2 Quads but replaces with 2 PCI-E slots for Vid cards. add in the $60 price, can't be beat really. Geeks.com has a couple "older" Socket F Quads for $178 each, same clocks as the one Fizur posted, 2.3GHz, grabbing 2 of those, the mobo, & 1 or 2 9600GSO/GT Recertified cards for about $60 a piece...
just on the core hardware itself, thats $536 right there. another $80-90 nets you 2x (2xGB) DDR2-400 Registered RAM for 2GB Dual Channel per Quad. grab good size PSU for servers. EATX designed Case, & decent sized HDD & Optical drive, & of course an OS, all which can be had for relatively cheap, maybe the case & PSU being the most expensive, the rest is change in the pocket for costs.
gets you a far more powerful setup than is capable on the Quad Socket F board...
Now What I'd like to see is someone (with the money to burn, I'll do it if I win the lottery
) adapt the nVidia Quadroplex deskside systems, 2 can be run in SLI on an SLI Compatible Mobo, for a total of 4 cards... or in the case of using the Quadro FX 4700X2 cards (basically 2 8800GT equivalent Quadro Cards in a similar form factor to the old 7950GX2), they can have 2 of those per Quadroplex... two of those can run SLI...
but forget the SLI, run each seperate on something like the Intel Socket 771 Skulltrail board, Dual Quads, 4 PCIE 16X slots (assuming the daughter cards the Quadroplex's use aren't more than 1 slot wide).
2 Quadro 4700X2's in each, 4 Quadroplex's connected to the board....
[ (2 8800GT G92 equivalent GPU's per card) x (2 cards per Quadroplex) ] x 4 Quadroplex's = 16 8800GT equivalent Quadro GPU's running for Folding@Home... "in a single system"
(plus the Dual Quads on the mobo running at 3+GHz stock)
LOL
but even then, after calculating in the price of all that hardware, $10K+ for the entry level Quadroplex deskside set up... x4
about 2 grand or more for the CPU's. several Hundred for the RAM, OS, HDD's, case & cooling setups...
it'd be cheaper to buy a couple or few Rackmount Tesla Servers, which would almost double what that Dual Quad core, Quad Quadroplex Quad SLI Build (Quad SLI on each plex, but all running seperately) would generate in results easily, at least...
hardware
prices 
