I have both the commander and military sized Ruger SR1911s as well as a Dan Wesson, Colt, and Kimber. For the price the Ruger is probably the best buy of the lot.
They're all very good guns. The DW and Kimber are nicer than the Rugers or the Colt (Series 8) but they also cost almost twice as much. i don't think you'll find a better 1911 in your price range than the Ruger.