Bike Forums - looking for my first fixed/single speed

so I've been riding a Giant Yukon since 2004. I left it at work one night (my birthday) and come back the next morning to find that my wheels had been stolen. Happy birthday, stupid. Also, I work half a block from the police precinct. My friend was joking that the only people ballsy enough to do that would have been the cops, and I have seen their bikers riding Yukons....

So now I'm looking for a new bike, and I think it is coming down between the Cayne UNO (Rowletts special?), the Giant Bowery, and maybe "splurge" for an IRO Mark V, if they have it. Any thoughts, comments on these three bikes? I'm not used to a single speed bike, but I just want something I'm not going to have to worry about as much when im just commuting. Not that I'm leaving my bike outside of work ever again....