... is pretty damn cool. ive it running on my second computer ...
some screens:
http://s92915907.onlinehome.us/media_center.jpg
http://s92915907.onlinehome.us/media_center_1.jpg
http://s92915907.onlinehome.us/media_center_2.jpg
it pretty much catalogs your mp3 directory by artist / album and retrieves album covers from the interweb ...
it supports tv / radio tuners ( i dont have but would be nice ) ... it will also catalog your video / dvd etc collection to be accesible thru the above interface.... pretty damn leet.