Hello, I've got a decent spec pc, but I've recently bought a 1920x1200 monitor. Now some off my games run a lot slower (understandably). I've got a 8800GTX at the moment, but I'm tempted to upgrade to a GTX280, is the jump big enough? Am I going to notice a dramatic speed difference? If not, any ideas? I've got a CrossFire motherboard, but not SLI compatible... Regards, Alex.