Luc,
Be careful with Rundgren's LP reissues. There are a few places in and around LA that probably still have them and they're cheap, as well. Unfortunately, they're uniformly thin and screechy sounding. His CDs are a mixed bag sonically, but the LPs that I've heard generally suck.
Good news is that Greatest Hits Live features great songs, great performances, and very good sound (on cd). The 7 cd Utopia Live box set has some great music/performances, but sound quality is (pardon the pun) all over the board. The double LP Utopia hits record is also a mixed bag sonically.
I believe that Rundgren is GREAT, and he's among only a handful of pop musicians I'd so describe. Other than Brian Wilson, I can't think of any pop/rock songwriter who can match Rundgren's mastery of harmony. My first rule is "buy anything he's touched" from Meat Loaf to his Bossa Nova greatest hits remix record. Just don't expect a lot in the sound quality department. Unfortunately, the sonics are just wildly inconsistent.
Good Luck,
Marty
