Welcome from Sydney. I have 2 RFs, an Olympus XA (pocketable, aperture priority RF) and a Fed-3 with Industar 61, along with a bunch of non-RF compacts including the Trip 35 and Mju-II.
What distinguishes RFs in my opinion is handling (including the viewfinder experience), and lens choice/quality/signature.
I place emphasis on lenses, although handling is also important. What focal lengths do you feel most comfortable working with? If it's 35, 40 or 50mm then a fixed lens RF or scale focus is an easy way to test the water. Some lenses have deserved reputations for both quality and signature - e.g. the Hexanon on the Konica AF, the Sonnars/Tessars on the Rollei 35s. These are just two examples. Browse the forums and the Gallery, and you will see many more.
Also do a little research on whether the cameras on your shortlist require regular CLAs and if they rely on obsolete batteries (if batteries are used).
Good luck, and enjoy!
