the stock wheels on your car should be 17x7, but an 18x8 won't be much different with a 235 wide tire so i'd stick with that size anyway.

the wheel/tire packages you'll find might end up being a little bit more unless you just want cheap, knockoff wheels (probably going to end up being that way anyway).

however, you mentioned a turbine styled spokes or the STI BBS. so you're looking for something like 10-15 spoke wheels, in gold color?