S2000's arent slow, and yes, on paper everyone says "OMGZ no torques!!11" in the real world, its fine. You dont have to rag it to go fast either.
I wanted one for 8 years and ive not been disappointed with mine. I love it
Mine is an 02 with glass rear screen. I would at least get an 02 or newer just so you dont have to worry about that rear screen.
fairly sure mine needs the Geo / bushes doing, as it feels a bit sloppy. They do suffer with siezed bushes quite a lot too.
/edited to add, insurance is a killer too, but I didnt do too bad at 25 with 3NCB, got it for £800 with elephant, but thats with 2 females on the policy too.
Also I have the Spoon N1 exhaust system.