Logic Pro 8 Using a second computer as a external midi instrument or DAW slave?

Hi guys,

I'm new to this forum. This is my first question post...

So this is my current setup:
iMac 24(FW 800 & 400) with logic 8 & reason 4,
Focusrite Saffire Pro 40 firewire (x2) sound card/pre-amp,
Blackbook with MainStage & Reason 4.

& this is what I would like to do:

Use my imac as my main DAW master, (currently tracking to an external FW800 drive & pulling loops from a USB drive), & use my blackbook to run reason as a external midi device or slave.
My Saffire Pro 40 has 2xFW400 ports so I can connect both machines to it.
The idea behind this setup is to pull as many software sounds from the Blackbook & mainly use the imac to run Logic.

Does this make sense? & if so, what's the best way to execute this?

thanks in advance
I've seen this post lanquishing for a few days, so I wanted to welcome you to the forum. I know there are quite a few people that can help you, but probably those folks use different equipment. Moi aussi. But to do what you ask, for sure, you need to be able to totally synchronize the two computers, or it won't work. My son does it with ethernet somehow, because he didn't want to buy the necessary hardware. I do it with hardware, because his method introduces too much latency to use it for live recording. My method requires "wordclock" to make it work. It also requires a way to tie audio and MIDI together. Each computer needs both MIDI and wordclock connections, and I recommend a master synchronizer, if you are serious. If you have the right equipment already, tell everybody exactly what you have.