Count me in too =)
I'm in Glenelg - places I think are good (and obviously this is subjective) are the Dublin on Moseley Square, or Salt or Pier One on the Marina. However I like all of these places for chilled week night drinks, not sure what they're like at the weekends. There's also the Holdfast Hotel at the corner of Pier St/Brighton Road which I haven't been to for a couple of years...
Two places that I love in Glenelg that are a bit different - the surf club for very casual drinks on the balcony looking at the sunset, or Bay Bar Dos - an amazing wine bar/tapas place very near the surf club - just off Moseley Square also overlooking the ocean. It does amazing food and decent wine - but depends if you're looking for somewhere more relaxed to chat or somewhere for a full on night out with loud music/dancing.
Hope that's of some help! =)