Mark,
Most of the bands I'd like to see reunite have members who have died; Led Zeppelin, The Beatles, Jimi Hendrix Experience, The Clash, Thin Lizzy and Nirvana.
Zeppelin could tour, but not Jimi Hendrix Experience, Thin Lizzy, and Nirvana. The Beatles wouldn't be the Beatles with just Paul and Ringo. I love to see The Clash, but it would be missing so much without Joe Strummer. It would shock me if they ever got back together.
I'd like to see The Specials or Pavement unite and I'm very keen to see The Police when they tour.
I read in several different magazines that Pavement wants to reunite in 2009. If you want to see The Police you better go this tour since I don't see Sting doing it again.
I'm pretty cynical about a lot of these reformations particularly when the bands in question have made such a big deal out of their 'last and final' tours (Crowded House, anyone?). As for Genesis... bleeeaaaagggghhh... Sorry...
I do find it funny when bands have had more than one 'last and final' tours. But hey even rock stars need extra money.
As for Genesis, does it still get a 'bleeeaaagggghhh' if their fronted by Peter Gabriel??