korg n 364 would be the best choice among those options.
it has
16 tk seq
prog and combi mode
64 poly,GM
great for live playing(with the band)

down side- seq has only 32,000 note mem(ie-4-5 SMFs)
no direct disk play (you gotta load songs)
OK ac piano(like most Korgs)

other than that(overall sounds wise) it's hard to beat.

[This message has been edited by jamman (edited 07-05-2005).]