Schlafly Beer "The Tap Room"
Westport Plaza - bunch of little bars and restaurants. Toasted Ravioli is the thing to get.
Soulard would be good - Cajun Food, Johnnie's (upscale Hooters), Carson's (downscale Johnnie's), McGuirk's Irish Pub
EAST ST.LOUIS - has good "clubs"
PS - If you have a car while there - Meramac caverns, a case of beer, and a canoe or an inner tube on the river.