2 miles really isn't too far to walk. It seems silly to me that everybody asking about a new bike always says "it has to look good" at some point.

I say the uno. You'll notice the speed/efficiency difference on a single speed, and the uno is a tough bike for the money. If you already have a road bike why not just figure out accommodations to park it wherever you commute to?

I'm also in Atlanta and it's a jerk to ride in this city sometimes...Trying to get down Marietta street the other day was an exercise in patience and bravery.

In any case, I would avoid the high end bikes unless you can park them indoors, a nice bike is just going to get stolen around here. Have you looked at that 20" soma? It looks great, can take some thick rubber, and accelerates quickly because of the small wheels. You do loose out a little in cruising speed, but around the city it'd be fine. Looks here is a matter of opinion of course.