Have to disagree with you there, the only portable Apple makes that has Torx screws in the bottom case is the new MacBook Air.
The 2010 MacBook Pros all have #00 Phillips screws in the bottom case, yes, they're in there tight. You'll need a pretty small screwdriver. I use Wiha myself, but they're kind of pricey (really nice though!). Any set that says it includes a #00 Phillips should work, but some of the screws Apple uses are relatively shallow and can strip if you aren't careful.