Mobo an video cards for three monitors

[rarch1]

Im trying to build a machine that supports three monitors. I would prefer the AMD mobo with dual PCI Express.

I was wondering if there was anyone out there that had any experience on a good mobo and videocards to support the three monitors. We are looking for something that can span the desktop over all three monitors and also have SLI enabled at the same time. (we ran into an issue once with some nvidia cards where you could either have SLI on or Span the desktop but not both at the same time.)

Thanks