[CyberMonkey]

I use Mobila VIdeo Studeo Pro, it will convert videos to varous formats: Windows Mobile, PSP, iPods, Zune etc... and you can create and save custom setting for different screen sizes and stuff. I am pretty happy, and it's drag and drop, you connect you device to it, it see it's you can drill down to the directory you want them saved in and just drag and drop any video into the window and it converts it and saves to the device.