Apple Logic Pro /LogicExpress Discussion

I have an old Yamaha RY30 drum machine that I would like to use as a
controller (to play EXS24, Ultrabeat, etc) drums in Logic 8, similar to
how one would use an MPC or an Akao MPD to to that...can anyone explain
how to do this. Will I be able to use my DX7S as my keyboard controller
(I use it currently as my master controller, but don't like composing
drum tracks on keyboard keys).

Any help would be greatly appreciated...



thanks!