Tune Register will help you to "Register"(import) more videos to your iTunes.
No more silly steps needed. You could import AVI files easily by just drag'n drop to your iTunes.
If you have already installed QuickTime component, Tune Register will support flash video(FLV), and windows media video(WMV) files. You could manage more video files by iTunes.
Tune Register has another function which wraps (not convert) video files (such as FLV, WMV) to MOV format file and Register to your iTunes. If you usually listen these files by using QuickTime component, Tune Register will wraps easily, and quickly and Register to your iTunes.