Like EscrtLover said, Teamzx2.com would probably be your best resource. I'm an Admin over there and have owned a ZX2 since they hit lots in 1997. Anything you could want to know, etc. is over at that site. Its been around in some form or another since 1997.

Also check out zxtuner.com, Rob has every part imaginable for the zx2. If you have any questions, etc. PM me if you want or AIM, whatever always around to help.