i am about to buy a 2011 tarmac pro, and i am trying to decide between ordering the fully built up dura ace model of the bike (with the specialized crankset and OSBB), or ordering just the tarmac pro frameset and building the bike up with a full dura ace 7900 groupset (including the dura ace 7900 crankset). the money looks to be about the same. i ride about 180 miles a week (mostly climbing), i weigh about 190-195 lbs, and my ftp is about 360 watts. i race a little (i'm a men's C collegiate racer), but mostly i just love going for long challenging rides, and want high quality equipment that will last. what do you guys recommend? also, if i get the frameset and buy the dura ace groupset separately, is the tarmac pro frameset bottom bracket threaded for english or italian? should the front derailleur be braze on, 31.8 clamp, or 34.9 clamp? thanks for your input.