+1
Boardmans are excellent bikes for the money, great bits of kit. You'll love that and the bigger bike to bits, all great fun. Take it easy on a 600CC, they are a lot more powerful than you might imagine, especially if you have mates that have 1000CC+ willy waving, a 600CC is more than enough to keep up with almost anything.
Nice one mate. If you need any riding inspiration we can cater for that too: http://www.350z-uk.com/forum/viewtopic.php?f=13&t=38473
Good to see you getting on ok after such hard times.