Ok, in the next month or so, after i buy AC for my laptop, I am going to upgrade the HD to a 500GB 7200RPM drive. I was wondering to those that upgrade your internal HDs, what do you do with them? DO you buy an external enclosure? I know I will need to keep it, for warranty purposes, but I would want to put it to use, ya know? What enclosure would be a good one? I just don't wanna spend a ton on an enclosure, as external drives are getting cheap..