Foo_uie_albumart, Very simple album art panel
UPDATE: version updated to v0.041

Still to do since v0.041 (in order of priority... kinda):
* Fix wildcard matching so it works with unicode
* Allow to select intrepolation mode
* Image padding option
* Hide sidebar when no cover to display
* Archive support
* Retreive the cover art image itself (binary) from track tags
* Multiple images cyclable by left clicking
* Download cover art from context menu
(To-do items towards the bottom may be just some possibilities that may never get implemented)

http://egosphere.webplanethost.com/...ie_albumart.rar