Thought I might try and rack your brains for some ideas/input if thats ok!

All my friends/family have their own agendas so its hard to get an unbias opinion from any of them.
We moved from Wellington over here (London) just over a year ago. We had planned on coming for 1 1/2 to 2 years but we both really like it so have decided to stay for longer, probably another 3-5 years. We are definitely coming back but we have no idea where to go!
We both hated Auckland- although my bestie lives there it isn't an option for either of us. DHs family lives in Hamilton, he would LOVE to go back there but I won't, I honestly think it would mean divorce within a week if we did. I love Wellington and would love to go back there but DH was really unhappy there and I don't want to make him go there as I want us to be somewhere we both want to go. Also, my family is there and Mum has this way of coming between us (I am aware of it but find it hard to not let her get in my head) so I think it is best for our marriage that we have a little distance from her. I would love to go to Nelson but as DH is an accountant and most of his experience is for multinational firms the work options are pretty poor there. Neither Christchurch or Dunedin appeal to either of us.
The only other option really is Melbourne. I feel like a traitor considering moving to Oz but its within a relatively easy flight of NZ (compared to the 29 hour one over here!)- DH can earn great money and I just like it there. DH is keen but my worry is its a bit too far from family and just the thought of my kids growing up being australian... (no offence to any aussies out there!).
What do you guys think? Reading back it kind of seems like I have already made my mind up but I really am torn. I know DH will go anywhere I want in the end but I want to do what is best for all of us. I like the idea of being in Wellington as I have my family there- for the support and for my kids to grow up seeing their grandparents on a really regular basis BUT money is a big deal to us. When things are tight we fight ALOT and things would be alot easier in Melbourne due to the bigger wages DH can earn. Sigh.

Sorry for the big waffle! All comments/ideas/opinions welcome!