How Does Sidewall Affect Handling?

[sleepydsm]

Would there be that big of a difference in handling in a same width 16" wheel/tire versus a 17" wheel/tire (Assume same wheels/tires, just differnt "profile"). I've always wanted 17s for a) looks b)handling and c) room for BIG BRAKES! After I put on my stainless lines, I like the brakes so much that with a better pad I'll probably have all the braking ability I want. So 17"s almost seem like a waste of money... Then I'd almost like to get some lightweight 15" rims if I'm gonna use the stock brakes. Hmm, opinions anyone?