movie file conversion tools?

[IPD]

looking to convert 720p .mov files into smaller files--say 480i, 360p or 240p.

does anyone know of a (preferably free) program than i can download which will do this for me? i don't really want to upload my content to youtube just to get it converted.

thanks!

[Polygon]

I like Mediacaoder (http://www.mediacoderhq.com/) for transcoding.