I have from sanity.com.au before, and they were quite good. Usually if I am ordering stuff, I will check the MetalMayhem.com.au catalogue and send them a money order (or you could order over the phone), or send them an email and see if they have whatever I want in.
I am sure someone else will be more helpful though.
I love ebay, but generally don't buy stuff from overseas. It is annoying when you are almost paying as much for postage (or indeed more) than you are for the item.
US postage rates are astronomical! Packages I get from there have stamps all over them, yet I can send one of my books to anywhere in the world for $3.