I don't usually like techcrunch but this hit the spot for me. Itunes is broken for my (simple) needs. A 'lite' option that is basically a file manager would be very welcome.
(I'm sure there's a similar windows client if that's your thing.)
edit: alternatively, picoplay (http://www.kronenberg.org/picoplay/)
I've never liked iTunes.
Check out Preferences / Advanced: - Keep iTunes Media folder organized; AND - Copy files to iTunes Media folder when adding to library
Problem is, iTunes is so good at what it does (in terms of satisfaction, anyway) that it's got no real Mac competitor, so that the people like me who get pissed off at small things like not looking like a goddamn toy don't have anything to switch to. If only I could code.