Well, I'd rather underclock it to avoid any damage than to run the risk of it overheat and potentially damage my comp.
anyway, I'd bought a new external HD, Western Digital - My Book Essential 1TB External Hard Drive, from best buy. I heard some good and bad stuff about it, so hoping it won't break down on me (hope I don't jinx anything). I'm actually quite fond of WD, btw.
I'd actually had a 750GB External HD, also a Western Digital. it's great, but I'd almost been filling it up alot recently. I'd have to burn many files to disc.
I just bought the 1TB today and am currently moving all of my files from the 750GB to the 1TB, then give the old one to my sis cuz she needs it.