When you come over, where would you be staying? Canberra / ACT is a great place for riding, most trails are just a ride from the city. Victoria has some great riding too. IF you ride a roadie, I presume your more into XC / Enduro / Trail riding rather than DH, FR type thing?
Yep. Fire road and single track. Lot's of climbing and both tires on the ground! The whole DH and FR thing is cool, but I'll leave that to the youngin' The bike is the only way I can stand to get exercise and it's the only thing I know that rivals skiing for the adrenal response. (OK there is great whitewater in my neighborhood but enough people die doing that stuff that I'm kind of not interested ...)
Next time I'm heade down under I'll pop you a note and pump you for some tips! Cheer's