The Ultimate series - iPodME

Forget Videora. If you are looking for a video converter for your iPod family, look no further than iPodME by Noda(the developer)
Requires NO installation, the 3MB executable can be ran straight and takes in your mpg, avi, flv(Youtube) files and just churns out quality mp4 output. A list of 6 well-thought-out encoding profiles and ability to utilize ffmpeg or directshow codecs, top that off with a queue list and auto-shutdown when done, need I say more?

Get it here: iPodME