[03LOKI]

I have completed the balance of my engine mods that I have money for currently and they include a CAI, exuast, headers (next week) underdrive pulley, now i am looking for something to help my computer compensate for them I dont know much in this area and was looking to you guys for some information and your opinions on things like a mafterburner? and a re-programed ECU according to your mods. Anyway my question is this: I will plan to do one of these mods next to coplement my others but which one is/will
A)more cost effective
B)give me more Pony's
C)be easier to re-program for future mods such as plugs,hotwires,intake manifold, boared out throttal body?

and will a mafterburner require me to dyno my car to set it up correctly?
I guess what I really need is a thourogh explanation of both
Thanks
LOKI