There is one problem about RevoDrive since it uses PCI-E. Despite your MB has 3x PCI-Ex16, two of them share bandwith with each other, so discrete video card takes away most of it, and the 3rd shares bandwith with USB 3.0, eSATA (and maybe something else, go to ASUS website for more info) so if you want to use this slot in x4 mode this interfaces probably wouldn't work.
That's why I wait for vertex 3 instead of buying RevoDrive x2 right now. Going to buy a pair and make RAID0.
Upd: Forgot to mention that Vertex 3 supports TRIM unlike RevoDrive.