I'm about to move to Eastern Europe and don't expect an Apple Store to be anywhere within a thousand miles. My GF needs a computer too. So here's my problem. I give my GF my Rev A 17" PB (and she has sex with me - it's a good deal. She's staggering.) I buy a Rev c 17" (I like the big screen) with a 1.5, 5400 and 128 9700 video card. The question is do I see a real performance increase. My guess is yess but anyone done a comparison? If the difference isn't there would it be smarter to buy a Rev B and save the cash?