|First you might take the battery out and set it in a warm, dry place for a few days--not the oven. Maybe drying it out real good will get it going.|
If not, is it still under warranty? If so, send it back and pretend you don't know what happened to it.
If that's not an option either, go ahead and get an estimate from a shop. It looks to be a fairly decent camera that could probably be fixed for less than a new one would cost.