I had an old 15" Dell (I think) LCD laying around, and for kicks I thought I'd try to swap it into an Asteroids cocktail that I have with a bad monitor (using a Raspberry PI to emulate). I quickly ran into a viewing angle issue, and now I'm on the hunt for a monitor. I'm looking for a 15", 4:3 ratio, as that fits just about perfectly. I'm not looking to spend a ton of money on it, either, so used is probably preferable. Before I started searching, I figured I'd poll the experts and see if anyone has any specific recommendations.