Xan, if youre looking to buy this is a thread a started a few weeks ago and now Im a happy Z owner. Hope it helps:
Reasonable dealers NY/NJ
Just fyi, I didnt end up buying my car from any of these dealers, but it was certainly a good guide. I suggest you do a good amount of research here on the forum and then use your gut instinct when speaking to salesmen, I could usually tell when somebody was dishonest throughout my experience.
Considering you have alot more posts than myself Im gonna go ahead and assume you know your shiz haha.