Jason,
By the best info I've heard you can only really push 215 section width on normal 190's. (you can go wider on 16v's) The 15" 8-holes from a 400E should fit, but if you are buying new wheels you'd be better off to get a set specifically for your application.

Since the OEM size is 185/65/15, I would recommend 205/55/15. In that size the tires I'd recommend are the Michelin Pilot SX GT for a sporty fittment, the Michelin Pilot XGT V4 for a sport/treadwear/snow/etc traction compromise. The Dunlop SP9000 is a good ride/handling compromise. Let me know what your priorities are and we'll be happy to discuss options. Or just call Tirerack and talk to one of their professionals. They will be able to tell you exactly what will fit, what is available in different sizes, and what will work best with your priorities.

Hope this helps...Lee