Usually SLI ready boards are identified with SLI in the name itself. If not, look for two PCI-E slots and check the features and see if they say it's SLI ready. As for Socket T motherboards, not sure.
EDIT>>> Check Newegg. Came up empty handed. Sorry. I guess the Intel SLI-Edition chipsets (which are total crap if you ask me) are for ATX motherobards only.