I'm looking at buying a MacBook Pro refurb and have a few questions. 1. Am I going to experience system lags/hangs when running iTunes playing a 200mb sound file, Photoshop CS3, Safari, plus other numerous small apps and a couple Word docs? (I will upgrade the RAM aftermarket.) 2. Is a high end 15" MBP overkill for the above work? The main reason for the MBP is the 15" screen, 512mb VRAM and size/portability. 3. Is 512mb of VRAM overkill for just gaming? I would love to play COD4, BFBC and possible Crysis. 4. I would like to purchase the next revision of MBP form the refurb store and not have to purchase a new laptop for another 3-4 years. Would it be worth waiting for Nehalem? Thats all for now. Thanks in advance for the help.