dude bad luck man!
i'd say if you genuinely believe you weren't doing 101kmh, ask for all the evidence and appeal it (in court if needs be). ask for the print-out from the radar and radar calibration history. its this last point that will most likely get you off. you can simply claim that the radar was out of whack in court (if the calibration tables were too old) and that will make the evidence null and void.
i was speaking to a driving infringement lawyer a few weeks ago about this very subject and she reckoned that she'd got plenty of people off this way. it might pay to make a phonecall or two to see if your case will stand up.
otherwise, its only $208 (or a big night out) and if you can spare the points, do it. will save you a lot of headache...
d