depends what you need. for speed get 1dm2n. for focus accuracy get either 1dm2n or 5d. not that 30d does not have focus accuracy, but if my 10d is anything to go buy, have to send in to canon for recalibration before it focuses accurately. then again 30d + 2 lenses would be really good value for money.
given the choices above i would probably go for 5d + 70-200 f/2.8 USM.