I'm trying to find a good motherboard that supports Intel Virtualization Technology (Intel VT). So far, there isn't a lot of information on the web about which chipsets support it or which motherboards do. I purchased an ASUS P5B Deluxe motherboard based on overclocking recommendations from this website, but when I installed the system and tried running an app requiring virtualization, it said the system didn't support it. I had thought that as long as the CPU supported it, that would be all I needed. Apparently, the BIOS must also be configured to support this which the ASUS P5B boards with the P965 chipset do not. The only one I could find that does support it is a Q965 chipset which is the ASUS P5B-VM DO motherboard which a micro ATX form factor.
I know for a fact that P5B Dlx supports VT.