Good luck. As with most OSes, iOS keeps getting better and better. The dependency on a PC running iTunes ends this fall with iOS 5. See here for more info.
Wirelessly sync your iOS device to your Mac or PC over a shared Wi-Fi connection. Every time you connect your iOS device to a power source (say, overnight for charging), it automatically syncs and backs up any new content to iTunes. So you always have your movies, TV shows, home videos, and photo albums everywhere you want them.