If you're looking for a lightweight alternative to iTunes, then Everplay may fit the bill.
Although it's not half as feature filled as iTunes, it is very light on resources and merges your iTunes library with Last.fm web and online radio services. It's particularly good for those who use Last.fm as it scrobbles music to Last.fm servers.
Browsing through albums is like iTunes thanks to integration with Cover Flow. Everplay can play videos and you can control playback be defining hotkeys. Everplay also works with your Apple Remote and has a special Jukebox, Similar Artists and Full Screen mode which are ideal for parties.
Of course, there are far fewer features in Everplay than iTunes. For example, there's no online purchasing, album covers can't be retrieved from Last.fm and for some annoying reason, the entire playlist doesn't appear by default.
Overall however, Everplay is a refreshing change from bloated media players and is ideal for LAst.fm listeners that want a basic but elegant media player.
