Evlgurl - Stevo6 on the evo forum runs 245/35/18's on his rota's (18x9.5 +20). He mentioned that even on full lock it doesn't hit any inner guards. His car is not as low as mine though.
Hiran -
Aggressive style would be 18x9.5 +20.
I'd say flush would be 18x9 +30 (Someone correct me if I'm wrong).
Close to normal would be 18x8.5 +30.
Stock wheels are 17x7.5 +38. So ideally less offset would be better.