If you don't get what you really want you'll always be looking over your shoulder at other top shelf bikes thinking that one day you'll buy one. Save yourself the interim dollars and get the frame and components you really want. You'll save money overall. You can add the higher end wheels later on if needed.

The Zero Gravity brakes aren't that bad, but they certainly don't perform as well as Shimano's DuraAce or Campy's Super Record. I have a pair on my climbing bike to save a few grams and if it's raining forget about doing much braking going downhill. But you should not have that much of a problem our your way with the hills!