i love yellow. fyi there are two yellows on nsxs (and s2000's) 97-03 is spa yellow and 04-05 is rio yellow. the spa yellow has more green in it. Out of the two i think the Rio yellow is better, but i like both.
Only you can decide what color you like, i always am surprised by the number of people that ask what color is better, they are all equal and it is up to you to decide which one is best for you. as far as resale, the color statistics for 2008 came out today and the top three colors for 2008 cars aren't even colors they are white, black, silver and grey, the only color in the top 5 is blue.
There was a 22 step paint process on the nsx (the stock paint is equal to or better than any other car), and the metallics of the later year cars are amazing, rio and spa yellow, imola (orange), the blue cars and even silverstone have an amazing paint finish and reflective properties IMO.
best of luck