I'm not really an expert on this so take this with that in mind. I bought a '94 RT after going through some of the same questions you are. There are a lot of ways to get more HP out of the Gen I engine then just the Venom 500. Not that there is anything wrong with the Venom package, in fact I have heard nothing but good about them, but there are others out there too. Check out some other sites like BTRViper as well. As far as resale though I would assume that the newer one would sell for more, you won't get your money back in mods unless you find just the right buyer later on. Although, you'll never sell it unless you trade it in for the 2003 model right?! As I have heard on this site a number of times, buy what you like and what you are comfortable with...and if you want more horsepower, both the Gen I and Gen II engines have lots of room for increases. I don't know the exact list of differences between the RT and the GTS (and of course the ACR) but driving ones of equal HP, I can't feel any difference and I think that is what counts. So which one looks better to you is the question?