How is your Hour on its last leg?

I am riding a Torker U-District and love it! It can take 32c tires, has fender mounts, water bottle mounts, and is made to take a rack. I assume you want another fixed gear/single speed bike. If so look in to the Torker, it has many commuter friendly bits that pure track bikes do not. I know it is not a frame but, it is cheaper than many frames. I have ridden it almost daily since I got it over a year ago, I have no real complaints, just replace the rear axle nuts with track nuts if you are a powerful rider.

If you want just a frame, I would suggest a Surly Cross Check. $420 but hey, if the components from your Hour are in good shape then the cost to build up a Cross Check would be minimal I would think. I have a friend that rides a Cross Check as a fixed gear commuter and it is his car; he loves it. In fact, he is doing the Bike Across Kansas ride on it.