SATA Mass storage does not have to be in the computer per-say...

I have 10 SATA 120 Gb drives (Seagate/Maxtor/WD)

All 7200 RPM 8m cache. I like the seagate drives a lot better, 

They are very quiet and they do not make much heat at all.

I have 4 SATA to USB adapters that i use to hook these bad boys up.