Originally Posted by Wits_Of_Fury

Went in to the LBS yesterday to gain some perspective. The guy told me that I likely won't be able to mix and match so easily with the 105 and Ultegra sets, not to mention it's hardly worth an upgrade on my roadie if the shifters and crank are going on the commuter. He also mentioned that it's more a matter of personal preference whether to use a double or triple in the city. I'll have to get out there and decide what's more comfortable on my own.

I'm going to take a step back, visit a few shops, and ride a few frames before I continue this decision. However, I am leaning now towards just getting another 105 groupset for the commuter and waiting on the Ultegra upgrade.