except he wants a light binding, and px12s are far from light, but other than a very solid binding.
What DIN are you looking for? Or if you don't know that, what's your Height, Weight, Boot Sole Length, and skier type? Just remember that cheap bindings are cheap for a reason. If you can find a pair of Griffons for cheap they're a really good, lightweight, fairly durable, binding. Other than that, you can look for some rossi axiums - they're pretty light and pretty cheap, and they're decent bindings.