I guess I don't quite understand why you invested in a carbon frame, yet still add a whole bunch of stuff on your bike. Why not just get a decent aluminum frame at 1/2 the price and <2 lbs difference? I got my ultegra bike for $800, and I could easily turn it into my all around bike with an extra wheel set ($130 on bikeisland), some thicker tires/tubes, and some fenders if I really had to. If it's a really nasty day, I'll just swap out the wheels.

I upgraded my old vintage not too long ago. Spent around $500 on it, and basically replaced everything except the frame, crank and derailleurs. I would've been better off to have just spent an extra $100 on a new bike that's probably better and faster.