check out
www.HPTuners.com before you decide to pay almost as much to let someone else do a minimal improvement tune on your car.
the software is layed out in a very easy to follow format and there are a ton of "help" files that explain pretty much anything that you coudl possibly need to know. they also have a very good forum and tune dump on their web site for any other questions you may need to ask.
you have been around cars for a long time and have a strong grasp of how an engine works. jsut insert typing for turning the dizzy or changing jets and you have the idea. it is the same old principles, you jsut don't have to get your hands dirty to take advantage anymore.