For Australia, your first place to look is Bikepoint (
www.bikepoint.com.au). This is an excellent trading post for all brands of motorcycle.
I can give you reputable dealers in the Sydney and Brisbane areas (from experience):
Sydney - My first choice is ProCycles in Hornsby (at the far north of the city). I have dealt with them for years, as have many other people I trust, and all reports are universally favourable. Excellent workshop, knowledgable and relaxed sales staff, lots of stock. Also a Suzuki and Yamaha dealer.
Also Sydney: Tom Byrne Motorcycles seem OK, though I've never dealt with them much. No bad reports. They are in St Peters, a few kms south of the city centre. Also a Triumph and Aprilia dealer.
Brisbane: Morgan & Wacker are the only dealer in town. My experience of them is a bit negative, the shop is also a HD dealership and there is a lot of "snootiness" in the air. I also don't like being made to feel that getting mechanical service is a privilege. I test rode an F650 there but went and bought the same bike from another dealer because I disliked the vibe in their shop.
The other dealer (who I actually bought from)was Coastline BMW which is in a town called Caloundra about 1 hour north of Brisbane. I'm very pleased with them so far.
For mechanical service in Brisbane I go to the BM Shop. (
www.bmshop.com.au). This is a small workshop with limited stock of parts, but good workmanship.