Gamer’s Depot has put up an article comparing four SLI motherboards today.  They look at options from Asus, MSI, Gigabyte and DFI.  You can also check out my reviews by looking in our motherboard section
We firmly believe that the importance of SLI has been properly communicated amongst many gamers and certainly ATI — I guess it’s easy to talk-down a technology you don’t have out on the market eh? Regardless, as you’ll see in our benchmarks, SLI is here to stay and should remain an important technology in the years to come. Additionally, we know that NVIDIA is releasing the nForce 4 chipset to support P4 processors as well.