Hey Teresa. I've bought a lot of my stuff from EBayer "stecksstore". I have to agree with Ron. Birdsalls are helpful (and for me at least are convenient) but frustratingly its almost always cheaper to have it shipped from the US. FWIW the guy who runs its, Bruce, has always done right by me.
I'm also a fan of leffler. If you find yourself in Sydney, Leatherco has a large range of leather.http://www.leatherco.com.au/707 Elizabeth St
Waterloo NSW 2017
T: 02 9319 2900
Cheers