Any Canon or Sony DVcam will do a good job - I decide based on how the camera and the controls feel in my hands. I understand that Panasonic is also making good cams, but Canon and Sony have been the leaders. If you don't have any special needs, the ZR-20 should be an excellent choice.
Just be sure to leave room in your budget for extra batteries - you'll need them. Tapes can be bought for $6 each if you look around (I get mine at Costco).
Have fun!