I personally think you're getting a bit ahead of yourself. - You either want to modify and get more power, or you want to get the most out of what you've got.
This thread has gone a long way from "what kind of power should I be making" to " with a full remap, new injectors, new MAF, etc, what power could I be making". - With all the money that someone had already spent with Forge, I doubt it's looking very standard any more anyway.
Whilst people are making random suggestions, I'm going to throw-in buying some 800cc injectors ditching the ECU and MAF in favour of a Motec system with a MAP sensor instead. F*ck it; why not go for as much power as standard internals can take?
I'm going to second Jim's advice; bring it along to the rolling road day. See what it makes as it is, and fix any problems that are highlighted (if any)... then see if you want to start chasing more power.