waldoo28- I think it all comes down to who is doing the install. If you are going to do the install, then install a set of 2001PI heads would be your best bang for the buck and would really set you up for future mods. I recogmended the engine swap in case your car was getting high in milage and it wouldn't be too much more money then the heads.
If you are going to have someone else do the work, it seems like a power adder such as NOS or a supercharger may be the best bet.
The other thing is you have to decide how much power you want your engine to produce in the future. If you know you want big HP numbers even w/ a SC, then it may be wise to swap the heads anyway because they are the bottle neck of out engines. Hopefully you will find something that will work for you.
Ohh yeah, over at
www.tccoa.com they just posted a long article written by a few people who have done the head swap. It covers approximate costs, the actual install, and all parts needed. Go to the home page, and then scroll down and its halfway down the page under "News Bulletins"
[This message has been edited by 91LX2Bfast (edited 02-05-2001).]