Check out Tonga. Close to the Fiji-islands, far more exotic, less touristy and a lot more budget friendly. I'm going there in 5 weeks :P
For how long are you planning to stay? Already mentioned, but no point going to far out of you're own timezone if you don't even get the time to fight of the jet-lag.
From the little I've read about Tonga so far it seems like heaven on earth for someone already travel-weary, as I will be
