Betezy is a very good Australian book that caters to all size bettors and is licensed in the Northern Territory.
The only problem is that they don't offer as many markets as some other books, however if you call and ask them they will cater to your needs. Also, from what I remember off the top of my head is that they offer many different types of bonuses to choose from.
priceperheadexpert, I remember them getting criticized for giving credit out to some with no questions asked. That might have been great for liquidity and all, however I don't have to tell you the downside of that.