M-Box, and Recording Yamaha Motif MIDI with Motif Voices

[chuckm]

Just got an XP computer, and an M-Box with Pro ToolsLE 7. I have a Yamaha Motif synth, which has USB and of course MIDI out.

I want to record into Pro Tools, and maybe have a studio eventually master or otherwise clean/sweeten up my recordings. The local studio guys I have talked to tell me to record in MIDI, because they can work with MIDI files and not with Audio files.

OK, so I should record in MIDI. But I also want the Yamaha Motif sounds to be recorded to my eventual CD, not the MIDI sounds that my sound card has.

So is there a way to get MIDI recorded, and also hear my Motif voices?

A guy at the local guitar store said the solution is to record BOTH MIDI and audio tracks at the same time, using the M-Box.

Thoughts, suggestions?

What is the best way for me to proceed?

I am somewhat of a newb when it comes to this stuff; thanks for any help.