You're right Petrol. We kind of got carried away on one subject. Imagine what it would be like if we were all sitting in a bar having some beers and discussing this. We would all be slurring our words by the time we got to the next mod.

Any way, back to the original subject. First a budget would have to be in order, as some of the mods are from low budget to high dollar, but this would be my list in order:

flowmaster exhaust (many brands to choose from)
k&n air intake(again many brands brand)
shift kit (transgo, transpak, and b&m) (good investment, especially for towing)
tranny cooler( a must if you are going to tow)
chip (only if you want to buy premium unleaded)
supercharger (ati, kenne bell, magna, etc...) (big bucks, but ultimate thrill !!!)
electric fan (flex-a-lite or any)
75, 80, and 90 MM trottle body (may need it because of other mods)
4.10 gears maybe, (only if I had money to burn the others wouldn't be worth it)
headers (jba, hedman, hooker, etc..) again, only if I had money to burn

The ones below I wouldn't even mess with:

helix power tower tb spacer
power pulleys
8.5mm MSD spark plug wires & double platinum plugs
accel distributor cap and rotor
nos
hypertech power programmer
mobil 1 synthetic oil

As far as brands go on the mods I like, I suggest doing a search as these have all been discussed pretty heavily. Good luck and let us know how it turns out.