NSW or Gold Coast?

I may have the chance to go to Australia next year, either March or August. If I go in March then I would be in NSW or if it's August I'd be in Queensland (this is because of specific events taking place then, although I don't yet know which one I'll be attending). If possible I'd like to do a bit of surfing while I'm there.
I have been to Australia before, but not surfed there. Where are the best spots for an inexperienced surfer in either state? Is the Gold Coast worth a visit in August, bearing in mind it's practically in the middle of the southern winter? Or is it beset with localism and aggro towards outsiders? Any advice from our resident Aussies would be much appreciated.
Cheers
I have been to Australia before, but not surfed there. Where are the best spots for an inexperienced surfer in either state? Is the Gold Coast worth a visit in August, bearing in mind it's practically in the middle of the southern winter? Or is it beset with localism and aggro towards outsiders? Any advice from our resident Aussies would be much appreciated.
Cheers