Excellent choice!
I just picked up the same color bike Saturday, but with the 105s. I decided that I did not need the disc brakes living on the great plains, and I am going to move over my Ultegra group off my wrecked Cannondale. I instantly liked the ride on the Roubaix, and I had missed my old Allez, so I am glad to be back with Specialized.
lol, I have that exact rear light, and am fighting the urge to find a black one so it don't clash. At least your wheels have the white letters!

Enjoy it.
Michael