Some guesses are:
- Rick Heller for "frozen" gaussian wavepacket dynamics
- Martin Karplus for, I guess, his Karplus equation work in NMR, but a lot more stuff
- A joint prize between John Tully and Nakamura Hiroki for their work on nonadiabatic theory
As far as Physics, my guess is the people who did the research on the giant magnetoresistance effect (GMR), Grunberg, Felt, Sato. We all owe them a debt of gratitude for our spiffy near-TB hard drives. The erbium fiber optic people also have a shot.
Physio/Medicine and Economics I have no idea about.
Literature...I dunno. Uh...Inger Christensen, some poet I heard was a possible like two or three years ago.
And, of course, Peace. Will this be Bono's year? The Aussies at Centrebet have Martti Ahtisaari of Aceh accords fame as the favorite right now. In fact, a lot of Aceh folks are at the top. Interesting, internets people like Vint Cerf and Tim Berners-Lee are also on the list.