Windows only: Freeware application iPod Video Converter converts an impressive variety of video formats to iPod-compatible video files.
Add to that integrated YouTube downloads and conversions and you've got yourself one snappy video swiss army knife for your iPod. The program supports both 320x240 resolutions or the new iPod standard of 640x480, along with several other tweaks to the encoding process you can perform if you're interested in tweaking your output. We've covered other iPod and other video converters, as well as YouTube to iPod converters, in the past, but this is the first app I've seen to incorporate them all in one tight, easy to use package.