Well, I did it. I managed to get my Si cluster in my STD...it was actually a lot easier than I thought it would be...the three main harnesses...snap, snap, snap. Then the harnesses for the flashers, rear defrost, and light intensity...snap, snap, and snap.
Then I tested it and...eureka!...it worked.
Then I had to undo it all and swap out my odometer from my STD cluster and put it in the Si cluster so that it reflected accurate mileage.
Snap everything back together, screw it all down, and bam...done.

Thanks everyone for their input :thumbup:

Jason

PS> So far I've taken off the Si the glove box (mine was broken/hinges), the mirrors (no passenger mirroron the STD) now I have two instead of one, the gauge cluster (swapped).
I have also removed the rims and tires, the rims were rusty so I ground them down (wire wheel on a drill), primed them, and painted them black today...these are being used for winter rims and hopefully I should have my winter tires on this week.
I have also removed the headlights (extra), the front bumper (future mod-stay tuned), the trim piece between the bumper and the headlights (mine is bent near one fender that got a ding) and the fenders (being sanded and painted in a couple of weeks) to replace one dinged and one rusty on my STD.
Also today I removed the manifold heat shield and started grinding it down (STD one is rusted all to hell)...so the transformation is beginning...slowly.