For tint look into ceramic tints. A couple buddies in another forum were talking about them and said the amount of heat they keep out is incredible, even without being dark. One guy tinted his entire front windshield at a level that isn't even noticeable to the casual observer. He said it's amazing because you can see out of it just fine, but it keeps something like 85% of the heat out. That's the direction I'm going when I get around to it.