I posted a little while ago, but my plans have changed a lot, so here's a new thread:

So I currently use a vintage 10 speed for everyday biking in very flat Indianapolis, and a nice new Trek for long rides. What I'm looking for is a nicer way to ride my normal <10 miles everyday, and more specifically I would like it to be fixed gear.

I have a local shop that's pretty helpful with all things fixed gear, but I'm a bit too busy to be test riding at the shop for now, so I though I'd get as much prior knowledge and advice as possible. I have $600-$700 to spend (And I really don't want to go over $700), so I want the everyone's opinion on what the best value would be in that price range (and it doesn't have to be a complete bike; if LBS labor is factored in for the difficult steps, I'm fine with building one right off the bat). So no racing, not much hauling, just casual ~1 hour a day riding around a flat city.
So far I've been eyeing an Iro Mark V, Bianchi Pista, Jamis Sputnik, and Kil WT.
So your thoughts? Thanks in advance.