I don't know if all you guys are familiar with www.YouTube.com but you can upload just about any format to their site and they convert it to flash in a few minutes.

What I have been doing lately is using a drum, bass, and vocal --- attempts at vocals anyway --- backing track that I make and then crank that and play guitar live while it is all recorded on the camcorder. I then use Premiere Elements to convert the file and then upload it.

http://www.youtube.com/watch?v=rlt08mkOUp4