I have the 17" wheels from Phil at PSE and could not be happier with look and quality. The 18" wheels from ARE would not fit on SPO1867 without modifying the mounting flange by milling it down. Personally, if I have to turn wheels on a lathe and remove material, that concerns me. I know the 18" wheels fit without modification on the later model cars.
Here are a few pics of the 17" PSE wheels on my car:
