I have 2 Mini 10v systems and took them both apart to upgrade memory and add BT
cards. I noticed the newer model (March 2010) had a Seagate Momentus drive and the older one (bought in February 2010 but build date of Sept 09) had a Western Digital Scorpio Blue drive. I decided to swap drives and use the Western Digital as my everyday drive, and use the Seagate for the Mini I am giving my daughter.
The swap was easy enough, and I used my USB flash Drive to clone the disk.
Well, I am getting longer battery life with the Western Digital. The drive is dead silent, whereas the Seagate was almost dead silent.
YMMV, but i thought it was worth mentioning. I have heard nothing but great things about the Scorpio drives and so far I am impressed. 5 year warranty to boot (if bought aftermarket).