I don't actually own it yet but will by the end of the month. Anyway, here is my plans and I hope this helps...
GTR >
Volume Pedal > Pod Pro > (loop: GT-3) > Tech 21 Power Amp > P.A.
The Tech 21 Power Amp is simply a power amp with a 12" speaker but the big plus is that it has XLR's In and Out. So I will be able to use a higher quality cable (a.k.a. better overall, originally intended sound) from the Pod all the way to the P.A.
Again hope this help.
-Andrew