My girlfriend and I used a DIY conveyancing kit when we bought our first place. It was really easy, and we ended up explaining how to do a few things to the lawyers acting for the vendor (dont assume a law degree implies they know everything). More often than not, legal firms assign conveyancing work to the secretaries, which means you have pretty well as much prior knowledge as they do. If you are prepared to put a bit of time and effort into the process, it can save you a lot of money and be very rewarding. Just make sure you file EVERYTHING and keep track of when things have to be done. Doing it yourself also means you learn a lot about the property you might have otherwise missed out on.
Contact the law consumer association (in NSW). That is who we used, and they were fantastic