For those of you looking for an SLI for Intel board, HotHardware have a review of the ASUS P6ND2-SLI "look at the size of my northbridge heatsink" Deluxe.
When all was said and done, we would have to say that the Asus P5ND2-SLI Deluxe was an absolute joy to work with. The board performs like a champ, overclocks as good if not better than any motherboard we've ever tested for the Intel platform. Additionally its feature set is very well rounded, with Dual Gig-E, two SATA RAID controllers (one with SATA II capabilities and Native Command Queing), External SATA, SLI Graphics support, and the list goes on. The only issues we see are the board's placement of its X1 PCI Express slots and the fact that the North and Southbridge heat sinks are a bit meager for our tastes, although admittedly we had zero issues relative to related stability in these areas.
[The review]