I have some TE37 Time Attacks, 19x8.5/19x10.5 30mm/25mm f/r (on PS2s). I found one other person running that offset, S65B40. Based on conversations with him, I'm running 295/30 in the rear w/a 5mm spacer, and a 255/30 up front w/a 12mm spacer. Stock height, no rubbing, but I have a sedan. He has a coupe that is dropped, and also said he doesn't rub after he went with the setup he's running...
http://www.m3post.com/forums/showthread.php?t=155496