Thanks for all the suggestions. Jaycar is my usual supplier, they are the number one shop for hobbyists here in Australia. Futurlec have 0805 50V ceramic caps in reels of 4000. I think I'll buy a reel of 4000 100nF caps, and just use multiples of 100nF to get other values at the moment. Virtually all designs need a sprinkling of 100nF anyway....

Futurlec also have some interesting dev boards for people who are interested, and they have a wide range from PIC stuff to AVR stuff to USB stuff. Definitely worth checking out if you haven't seen their site.

The other places like Farnell and RS are much more geared towards companies. If you don't have a business and/or a credit card, they're not easy to do business with.

I'll check out the other links you guys sent me.

edit: Just to clarify, I'm talking about low budget hobby/prototyping suppliers here. Retail stuff, not wholesale. Small quantities etc.