There are several options in that price range. This is a pretty frequent question on this forum, so I would go back and check the archives to find a wealth of info.

Two good options that are favored around here are the Trek 520 and Surley LHT complete build.

But that's the tip of the iceberg. I ride a Bianchi Volpe, which is a sort of Touring bike/cyclocross hybrid, and it works well for me. It might be more of the kind of bike that you would favor, as a lot of people look at it more as a light touring bike (though I've used it on heavy tours of thousands of miles). If you will mostly be using your bike as a commuter, a light tourer or a cyclocross bike might fit the bill for you.