Ahhhh.....I remember the days when there was this goggle called the Vents Predator. The basic design was not much different from what you get nowadays (although they were actually available in camouflage patterns), but you could expand them to include all sorts of extra protection. There was sort of a triangular throat protection, which dangled from the bottom of the faceplate (although most guys fitted it on the faceplate itself, cuz it looked dead hard). You could also stick on some forehead protection, and, get this, even a headpiece, which was sort of a flappy, vented, cup shaped thing that fitted over your head, and was fastened in place by the goggle strap.
Personally, I wear as little as possible. Gloves, goggles, and depending on what surface I play on, kneepads is about as far as I take it. Don't even wear anything on my head, unless it's really cold, but then it's only to keep the cold out.
Good point though Justin. I'd hate to see the stupid regulations that a governmental body would enforce on paintball. We'd all end up looking like that tire dude from the Michelin ads....