Thanks for the advice mate I appreciate it.
I have been looking into it for a while. I was set on going for a full Armytrix System. I'm in love with it.
But after seeing a few videos and reading a few threads, I'm thinking of the muffler delete to begin with and a sport cat down pipe down the track. Plan on doing the down pipe either way for the power gains and if I decide to, can always change the exhaust to something proper if I'm not happy with it. Muffler delete doesn't cost much so no harm done if I'm not happy with it. Just chuck the stock muffler back on.
Have a look at this thread. It's got some nice videos and reviews.
http://www.2addicts.com/forums/showthread.php?t=1244096