I have to say my first choice would be a Porsche Boxter S manual. Quick and well balanced, not over powered like a good sports car should be, and pretty bullet proof. Plus not massively expensive for a good example down under.
Current Fcars: 360 Modena
Gone but not forgotten: 360 Spider, 575M, F430.
Other stuff: '71 Holden GTS Monaro, '80 BMW Alpina B9, '74 Porsche Targa, Caterham, MB CL500, Land Rover Discovery.