I am looking to start a build soon and was wondering what board will support both SLI and Crossfire. This will be my first build in a longtime, so the Crossfire, SLI confuses me somewhat when thinking which mobos are compatable with what. As long as there are at least 2 x PCI 16X slots can SLI or Crossfire be supported. Any any mother board will support one ATI or Nvidia card right? The only reason is I might want to switch to an ATI card 1/2 way through the year if their new one kicks the 8800's @$$. Oh and a power supply that is "SLI cert." will also work with a Crossfire setup?