As if he needed any more feathers in an already full cap, Joe McKeown received his 500th win Saturday night with a GW victory over Duquesne. Senior Kim Beck led the Colonials with 19 points, all of which came in the second half.McKeown and the Colonials now sit at 18-4 overall this season, and are in the top 20 in both national polls. The latest “bracketology” from ESPN.com has the Colonials receiving a No. 4 seed and playing at Purdue University.The team won’t do anything special to commemorate the milestone this evening, but the word out of Smith Center is that some festivities might be planned for GW’s next tilt, against Richmond, Feb. 10.