I'm a potential switcher thats caught in the midst of the "Which should I buy?" question. I've been looking at the 15" MBpro, but one thing I cant seem to decide on, is whether the extra $500 for 256megs of more video ram is worth it. I understand this is Apple Im talking about, but that still seems pretty excessive for the 'premium' price hike. And I dont think anyone here needs to note the 2.5ghz processor. 100mhz isnt going to really wow me. Overall, does anyone here have the premium 15"? Do you use the extra ram for video work or gaming?