Midi Question

Hello everyone. I am trying to trigger a sound clip using MIDI. I need to figure out how to assign a MIDI note to the clip itself. I have all the software that comes with Leopard plus Final Cut Studio 2 and Adobe CS4 (Full). Can anyone tell me if this is possible with any of the software that I have? Heres what I have going on.....

Going to send a MIDI signal to my Macbook Pro via a MIDI to USB

From there I want an audio clip to play when it receives this note

I need to assign the note to a sound clip, can anyone help me out? Thanks for any help. Matt

FCS and CS4 don't support MIDI. You need GarageBand (not sure) or Logic (will do it).

It also depends on what kind of device you are using. Or do you have a device at all?