Hey VeggieGirl, Fishchick sells MWs, Grindal worms, BBS eggs (got some off her just recently) and I think VE cultures. I got nearly all my cultures off her and they are thriving a year or so on.
Be careful buying anything from ebay like that, which is located outside of Australia. Can get in big trouble with customs trying to import stuff for fish into the country.
If you ever have any questions about purchasing betta supplies in OZ, feel free to PM me. I think I have sleuthed out the best stores and the best places to buy from.