I'm trying to finalize a laptop purchase for grad school architecture within a decent budget and am opting for a Sager 8760 w/ i7 740 + 80gb ssd + 320 gb hd. Do I go with an ati 5870 or nvidia gtx285m (which is $75 more). Please remember I am using this for AutoCAD 2011 and photoshop CS5, not as much for gaming. My concern is my desktop has a nvidia 8800 gs, which is already slow for me- and I want to improve upon that. Any thoughts are greatly appreciated. I will probably be using this for 2 years max before my next upgrade.