Don't worry about the above comments. There is some major exaggeration going on there! I haven't been to Acapulco in some years, but I used to go there all the time, and it was my favourite spot at that time. It is great for meeting local women from Mexico City (they're called Chilangas!), has a great array of awesome restaurants, and for clubbing, the only place better might be Vegas. The nightclubs there are out of this world. Like I said, I haven't been there in a while, so things may have changed.
As to the dangers, I know people that have been there recently, and it really hasn't become as dangerous as the rumours. True, there have been a couple of incidents, but then again, a couple of incidents happened in Toronto in the last year....does that mean you won't venture downtown? The reality is that it is a latin destination, and most if not all latin countries have their dangerous areas, and you should never be walking around waving your cash (ie. expensive watches) around. The only reason that latin countries are a little more dangerous than here is because of the divide in economic status compared to 1st world countries. Now someone might chime in and say that Costa Rica is totally safe. Have you ever been to San Jose? I have, and I'll take Acapulco (a fairly large city and not just a beach resort) over San Jose any day, when it comes to feeling safe!
Go to Acapulco, pick up some local chicas, enjoy the beautiful non-stop sunny weather, and dine in the awesome sea side restaurants. You'll have a great time, and you're pretty much guaranteed beautiful hot sunshine!
And please come back and post a review of the place!
Cheers
Goomer