Hey!!!
I don't know anybody that has installed a Mopar ECU on their 2G NT. Might be possible, but not sure.
That might be a good question for the Talon Digest;
http://www.dsm.org/menu.epl?item=10 Just a good reminder; It's a good idea to start with an Intake and Exhaust before you play with anything else. Improving Intake/Exhaust will make the Engine breath easyer and will give you reasoneable power gain. Going with an ECU is normally something you do later...
Hope this helps.
Ghislain.