For those of you who haven't already had a sneak preview, check out this site which combines Aussie search sites with the fantastic Google Earth: Suburb View : Realestate Search for Google Earth I've just had a play with it and it's a fantastic resource for those who like to have an aerial view of the suburb they're buying in and see at a glance what's for sale. It's not as detailed as RPData but is a great free resource and well worth adding to your favourites! Much easier to find your own home than the standard Google Earth.
Update: the fellow who put this together has recently added a beta version so that all streets are easily readable, much like on whereis.com Fantastic resource and totally free!
You might find this one more useful.. Zooms right down to street straight off no suburb view to start. ZoomIn - On-Line Street Maps for Australia Cheers
Thanks for that, Wayne, but only useful if you don't need to see what properties are currently for sale. Hasn't technology come such a long way?!