[FUHRIUS]

on wheels, I'm a spoke guy. Those bbs rs-gt's aren't my cup o t, but if you like more of a mesh design I hear good things about bbs. I'd also look at kinesis and fikse, both of which are VERY high quality, light weight, but pricey. As Keith Bontrager (of mountain bike part and frame design fame) says: "I can give you any two of the three...light, strong, inexpensive." I think the best looking wheel for my white car would have been the Kinesis K58's in a dark anno. Fikse fm5 is second choice...same qualities, same price, not quite as nicely finished in my opinio. But those sets were gonna cost me $4,500...wasn't prepared to go there.
I was told (by kinesis and fikse) that thier wheels are generally in the 18.5lbs range for fronts and 20-21lb for rear. A nice improvement even from the carreras. Anyhow, the wheels feel lighter, not much improvement in acceleration but they're more nimble feeling. And that's a good thing for handling but can also be a drawback on 'ride quality' where 'reide quality' is 'how comfortable is the car to drive down the road.' this isn't a big concern to me...when I drive the boxster I like to feel as if I'm driving a sports car not some luxury 'sport' sedan.