I would think you could update that laptop to at least Lion if you wanted. I know a couple people who are still using Snow Leopard just fine since it was solid

I would think you could update that laptop to at least Lion if you wanted. I know a couple people who are still using Snow Leopard just fine since it was solid and fast. The only major app I know of that they've had issues with is the newest version of Lightroom 5 requires Lion.