Just a bit of a shout out- although some of us clean our camera sensors ourselves, there's a special on at Camera Clinic until the end of October 2014. It's 50% off for sensor cleaning. It's worth considering- I get mine done a few times a year, because they go right through the body with a wet swab, and get rid of all the fiddly fluff we never have time to do.
They also do firmware updates and the like- as well as repairs and servicing of just about anything to do with photography. I've been a client of this family business for over 35 years, and they've resurrected gear I was going to slam with a hammer, thinking it was beyond help. Their http://www.cameraclinic.com.au website has info on how to get your gear to them, and all they ask for the massive discount, is a "like" on Facebook. Their number is 03 9419 5247.
Cheers
WildLight