I'm about 3 hours south of ya. I live about 2 min from the DE border in PA.
If stuff is wrong, as in sensor replacement... Get that stuff done before you take it somewhere. More often than not, people blame the tune when stuff isn't reading right. Simple **** like setting the TPS (did you get that memo?

) to .47v-51v, min idle, dist base timing (6*).. Stuff like that all adds up to a better running car..
Once that is all done.. Then start the tuning....
Tunerpro is what I use for most cars and have been using it since it first came out.
www.tunerpro.net/
For the chip stuff, if you are going to continue to screw with you car get this...
http://www.moates.net/ostrich-2-0-the-new-breed.html
But if you are going just to burn a few here and there.... Gotta get more than just that.
http://www.moates.net/gp1-package-gm...h-2-chips.html
Makes it easier when you want to burn chip and swap them all the time..
To burn the chips you'll need at least this..
http://www.moates.net/burn2-flash-n-...rogrammer.html
That will get ya through most of the stuff you need and some. I personally use moates' autoprom. I've had it now since 2004. Been working great since I've got it.
And finally you'll need something to at least see what the ecm is doing.
http://www.moates.net/aldu1-and-cabl...bl1-combo.html
That will get ya into reading the ECM is doing (and it is all done though tunerpro)
I believe that is it for now.......