Does anyone know a good and perhaps even free PC Video Converter? (AVI to MPEG or MOV,...)

Let's say you have a 300MB AVI from your digicam, what now? How can you put it here or any other online video-site??

Please read here, join and help if you can:
btw, i started this group for things like that as well. not only ipernity questions.

or use the skype chatrooms.