One thing to bear in mind is the audio quality obviously. I expect you have already thought about this but if not, I would suggest a camcorder which has a mic input and to use an external mic as I'm sure the camera will be a fair few feet away...unless of course you are going to be recording the audio and mixing this in at a later date, lipsyncing etc.
Internal mics on camcorders are usually good enough but obviously if you are going to be selling the material, an external stereo mic would be the way to go. I have a Rode VideoMic which I picked up for around £100 which has a standard 3.5 jack which could obviously be used for other things other than for the camcorder.
Just something to think about