A mortgage broker from Aussie home loans came today and was really helpful (not pushy or anything). He said that he gets a fixed fee whichever bank he organises for us (ING, Commonwealth, St George, Aussie etc)..not sure if true though.
We'd have to outlay more than 50% of our wages but apparently if we get a larger deposit this shouldn't matter as much. 20% was the figure he was using..just as the chuckster was saying! If you borrow any more than 80% you need mortgage insurance and it's much harder to get the loan through these guys apparently...according to the mortgage broker, the chuckster saying very similar things again!
My parents may be helping us out to get this greater deposit which would be great. I think the broker reckoned commonwealth may be the best for our situation but if he comes back saying we can't get a loan I'll start doing some research...even still I will check what he is offering compared to others.