i currently run my OS off a OCZ RevoDrive X2 (240 GB). it's really fast, running stable with no problems at all in a slightly overclocked system. BUT: the firmware part (option rom) that's being loaded into a small memory segment at startup is really large. depending on the board (here currently rampage 3) you may need to disable some of the other mass storage controllers. after a bios update for example i am not able to get the intel raid running with the RevoDrive in place. i'm stuck with AHCI now. there's simply not enough space in that small part of memory being used to boot the firmware. but like i said, this is depending on the board and its bios. i can't tell if your desired sabertooth would have that problem or not. just be prepared to sacrifice intel raid and use AHCI instead. but you can always stripe or mirror a drive in windows 7. won't be too much of a difference considering that this onboard intel stuff isn't real hardware raid at all.