I wanted to add my two cents to this since I just did a very successful Mac Classic II recap this weekend and it was only my second major soldering job. Use hot air. I have a $80 rework station with a hot air blower and a soldering iron - both temp controlled. I cranked the blower up to 460c (probably too hot) and used it to heat up the caps while I tugged lightly with a needle nose. All 17 caps came off in about 5 minutes without a single lost pad.

If you're going to be doing this often this is the route to go. Zero risk and very easy. If anyone wants I can also setup a deal to do yours for you.