I have owned a '91 NSX and now a '00 NSX-T, I would say that the changes between the two engines is substantial. Especially considering the '95 NSX-T is heavier than the '91. If you have the extra money spend it and buy the '97-'00 model, it will also be worth more if you ever plan to sell it.
Take this opinion for what it is worth though, I am already upgrading mine with a Comptech supercharger. You can never have enough Power!
By the way no matter which option you take you can't go wrong!
[This message has been edited by Carguy! (edited 09 November 2000).]