250's are alright mon, I mean, their power to weight ratio isn't half bad. The CBR is a bit of a boring one i hear, but there's alot of love for the Ninja 250r.
also, your learner plates look much better in australia... In the UK it's like having 'Knob' written all over you. We've got similar stupid restrictions here too, Being 17; i can sit and pass the full bike test BUT then have to spend 2 years restricted to 33bhp bikes. Whereas if you're 21 or over you can sit the full bike test, walk next door to the suzuki centre and buy a spanking new GSX-R1000. Considering in the UK, I think there are more accidents and claims within the 20-30 bracket than there are in the 16-20 bracket I would have thought they'd at least give everyone the same restriction... but nooo... bureaucrats.