I have a Sonnet Tempo SATA card on my 9500. I attached a 60GB SSD drive and I have been able to boot os 7, 9 and X from it.

Everything works fine but the sound. I don't know if it is a problem with my PCI connection... but the sound doesn't play correctly as soon as the SATA drive is being accessed. Even if I run the OS from an old SCSI drive.

If you manage to make it work successfully, just let me know!