After Wynkoop, I'd recommend:
1st Great Divide (greatdivide.com)
Its kind of northwest of downtown, but still downtown. Very very close to the light rail (but I wouldn't ride the light rail there from the convention center, not worth the fare).
(18 minute walk from the convention center according to google maps)
2nd Strange Brewery (http://www.strangebrewingco.com/
Denver’s newest and smallest microbrewery.
From the convention center I would grab an bcycle
ride down the cherry creek trail and then out to the south platte to make it a nice 4.1 mile bike ride, or a 1.8 mile walk as the crow flies on city streets (if using google maps, make sure you click the pedestrian option and not driving).
and 3rd you can easily stop at Rock Bottom brewery (more of a commercial chain restaurant atmosphere, but they still brew) on 16th street on the way to Wyankoop.
and if you are coming after mid june, you can hit up
which is down my REI on the corner of the two bike paths.
and and the sandlot brewery is at Coors Field