It's basically a toss up between the Skulltrail with two CPUs but no DDR3 and a cheaper setup that allows for 3x SLi and DDR3, my main concern would be passably running Crysis at 2500x1600 with very high detail settings on Vista.
eVGA nForce 790i Ultra 3 PCI-E slots or Intel Skulltrail
Core 2 Extreme 3.2 GHz 775 yorkfield or 2x the same thing but with 771 pin for Skulltrail
4x 2GB OCZ Reaper DDR3 PC310666 1333MHz or 2x 4GB FBDIMM DDR2 667MHz by Kingston for the Skulltrail setup
Most importantly:
3x Nvidia GeForce GTX 280 or 2x Nvidia GeForce 9800GX2 for the Skulltrail setup.
The Skulltrail system is still more expensive but is having 8 cores worth the cost of sacrificing DDR3 memory and 3 way SLi for Crysis?
eVGA nForce 790i Ultra 3 PCI-E slots or Intel Skulltrail
Core 2 Extreme 3.2 GHz 775 yorkfield or 2x the same thing but with 771 pin for Skulltrail
4x 2GB OCZ Reaper DDR3 PC310666 1333MHz or 2x 4GB FBDIMM DDR2 667MHz by Kingston for the Skulltrail setup
Most importantly:
3x Nvidia GeForce GTX 280 or 2x Nvidia GeForce 9800GX2 for the Skulltrail setup.
The Skulltrail system is still more expensive but is having 8 cores worth the cost of sacrificing DDR3 memory and 3 way SLi for Crysis?