I have tried foobar before, not for attempting to scrobble my iPod plays but just as a general music player. I found MM to be a little more user friendly.
If foobar allows a way to scrobble iPod plays I'll definitely look into though.
Edit: Ok, I got QTScrobbler to pull my info off the iPod...yay! Now I can't get it to submit and I'm fairly certain it's because I don't have the proxy information filled in correctly. I'm not technically savvy enough to even know where to find that information. Help!!
Re-edit: Nevermind! I downloaded LastPod and it was so much easier to figure out!

Worked like a charm.