The HV30 will cost more than the HV20. I really can't tell you the differences in the two. The 20 has a silver finish and the 30 has a black finish. There are a couple other features the HV30 has but i can't remember now.

I would have to say the Canon would take better video. All reviews i had read said it had the best quality video than any others in it's price range and the next price range up.

You would be suprised to know how many big screen movie scenes and music videos out there are done with theCanon HV series videocamera.

There is also the HV40 that has been out for a short time.