Yup, just as I have found--you're screwed if you do and you're screwed if you don't! I'm unsure of the camber thing as well and even the owner's manual states that it's + or - 0.5 degree but I'll get to the bottom of this soon.

To be safe, I'd stay away from the 215/45/17s--you don't want to spend big bucks on a new set of tires and have them rub and wear out funny. Your best option is probably the stock 205/45/17--that's probably what I'll be going with when I get new tires this summer. Funny, I've narrowed down my two tire options to either the Yoko Paradas and Kumho Ecstas as well. You really can't go wrong with the Kumhos considering the price (how much have you found them for? about $95 US is the best I've found so far) But I hear they wear out fast as well (treadwear rating of 220 so I guess that's why)--but I've heard great things about them in terms of dry and wet weather performance. The Paradas cost a bit more but they're from a proven manufacturer, so...but the Kumhos are just so damn cheap....