Hi, I just discovered a program that works great with Apple Ipods. yamipod (yamipod.com) is a very simple, stand-alone executable that syncs music to an ipod without iTunes. It is very simple; it uses a simple drag-and-drop interface, and requires no installation and no compiling/building.
I have the yamipod program stored on my ipod's hard drive (rather than my pc), so it works no matter what computer I connect it to. It works great. Just thought I would pass it on.