Gympie
I think the reason why Terry Ryder put it on his hot spot list was 1.) the proposed Traveston Dam was likely to go through and create jobs, etc and 2.) the upgraded highway increasing commuting time to other parts of the region.
Well since Terry wrote this the Traveston Dam proposal was dismissed by the Federal Govt. Now the state government is flooding the market with all those properties that they bought from locals in order to build the dam. But a lot of those people have moved on and cant buy their properties back. Hence, word on the street is that the saturated market will deflate Gympie prices. I dont know if this is fact or fiction yet, but its worth considering and investigating further.
I dont have any properties there but I have thought it about it. Locals tend to give it a 'bogan' image. But that really has nothing to do with investment potential as far as Im concerned. If you are hoping for capital gain in the short-term I would be cautious, but otherwise it would appear to have potential in the long-term. Properties are certainly cheaper there than other parts of the coast.