I picked up one of these tire changers from HF:

[Linked Image]

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=34542

It works surprisingly well, also picked up some tire bead lube and a brush and that makes the beads easy to get on and off.

Have also used the stock took kit tire spoons, they work in a pinch, but takes a lot more work.