Feel free to add on any reviews/ experiences- there's nothing I hate more than spending huge $$$ on tyres and then not being happy.

Okay, I started listing options below.... but it rapidly blew out with 215/55R17 sizes . Probably the best option is to search for what's currently available (in the size you want) on http://www.tyresales.com.au
Kizashi tyre sizes (tested and fit with no rubbing)
17"
215/55R17 stock size from the factory with 17x7" rims
235/50R17 (can be fitted to stock rim, same overall diameter as 215/55)
18"
235/45R18 stock size from factory with 18x8" rims