what are the x48 mobos ?
I know the Asus ROG version is the Rampage. I'm torn between getting that or a Striker II Formula myself. I already have an Nvidia card, not keen on the idea of going back to ATI (at least at this time). But early tests seem to indicate the X48 is a better chipset than the 780i.
Mind you, I'm waiting for the Q9450 to come out, and who knows what BIOS bugs will be worked out in the meanwhile? I'm content to wait for now...