Check this out.
http://audiere.sourceforge.net/
audiere is pretty nice if you ask me, easy and good API as well.
Realtime input and drawing.
It depends a lot on what type of game you're making, of course, but if you're using wx mainly for the networking I'd recommend against it, assuming that it's a live-action/real time game. http://www.opentnl.org si the netcode from the first 2 Tribes game, and is both really good and has a really nice API.