I have two that I think are pretty good,
1, Cafe VeBene on Lower North East Rd at Campbelltown,
2, Emilios Cafe on Frederick Rd Seaton (pity about the Port Adelaide stuff on the walls though!)

Still nothing beats the old Don Geovannis which used to be on Rundle St! - I did hear that some of the people that owned it now have a Pizza Bar of the same name in Mt Barker which I need to find some reason to call in at Mt Barker and try it out I suppose!