IELTS is nice...well if you can write n read English rather well. I guess you are good to go. If you still unsure, take some course, IDP got offered but I think fees applied.

Or, you can go to MPH, Borders or any book shop to look for exercise books.

Last time when I wanted to go Australia to study, I took the 3 days after i register and managed to get a 6.5 without much effort.

By the way, if you study using English during your college time, you might not need to take IELTS as what you studied already is in English.

As long as you are taught in English then I guess its exempted. What I do not understand is why you want to study UK honours in Australia? Both of them had different system...albeit slightly.

I myself used to study a UK degree in INTI. But after 2 years I credit transffered to Australia. Is that similar to your case?