You need to get in touch with Mr F for your local group, South east and Kent group, I think that will cover your area. They have a meeting at least once a month, from Pub meets to Bands Hatch and the HCSS, give Mike a call 01277 374201 or drop him a pm (his is a fellow 350Z owner).
Any National event you will be made more than welcome, if there are any on the list that take your fancy drop me a line and I'll put you in touch with who ever is organising that one for the Club.
Look forward to see you at some of the events this year.