@OP: Do you have any live albums? If not, I'd be headed there pretty quick. My favourites are Live in Chicago and Live Trax Vol. 1, though most people love Central Park. Their Best Of, Best of What's Around, also has a LOT of really good live stuff, especially if you dig up a copy with the Encore disc.
If you're going studio, I'd take Lillywhite Sessions over Busted Stuff, although IMO either disc has better versions of some songs, so it's best to have both and make your own version of the album. If that sounds weird, look up how the album came about.