The Mopar kit is an AEM computer. FAST also sells a programmable computer.
www.hotrodlane.cc also sells conversion kits as far as stock based computers and wiring.
Do you want a stock computer based setup or are you wanting to be able to tune it your self for different cams, headwork, notrous, turbo, etc?
The Mopar setup is a very good deal when you consider it has the "correct" throttle body you will want to use and comes setup ready to run. Add the fuel pump, motor mounts, and headers and you are ready to start. Kind of need more info on what you are doing to send you in the right direction. Motor setup, budget, time restraints, etc.