Well, we are already two exciting stages into the USA Pro Challenge!
The American BMC boys are really heating things up. Taylor Phinney's win was just great to watch (did the peloton gift it to him?). I think some of the fellas will be out for revenge from the Tour of Utah.
What are the key stages? I think today and tomorrow are the ones to watch, though the TT will be telling, and the mountains throughout are fun to watch. As always, Tour Tracker is the best way to watch these races (when will the big European races move to this format I wonder?). From what I can tell, all race coverage starts at 4pm Eastern. Live TV coverage is by Universal Sports Network, and they will have repeats on at 9pm.