So someone offered me a straight up trade of his Core Duo MBP for my C2D Black Macbook. Normally i wouldnt even think about this, but I have been wanting a MBP lately since I have been doing more photoshop work and gaming (XPlane looks like crap coming from my MB). Here are the specs on his: - 17" matte screen - 2 GB of 667MHz DDR2 SDRAM - 2.16 GHz Intel Core Duo - OS X 10.5.6 (Leopard) - Power adapter - 115 GB HD - iLife '09 Here are the specs on mine: 2.4 GHz Intel Core 2 Duo 2GB 667 MHz DDR2 SDRAM 3MB L2 Cache 250GB HD (Really 232.44GB) OS X 10.5.6 iLife 08 What would you guys say? How big is the performance hit going to be going from the C2D to the CD? I only use my MB for basic excel/word processing, internet/email functions, Photoshop, and now X-Plane. I have also been told that his MBP is 32 bit only, which might leave me SOL for an upgrade to Snow Leopard, but I haven't followed what improvements SL will bring. I'm quite happy with Leopard, unless SL is going to be a huge upgrade. Thanks for all your input! Edited to add: Also, I run parallels on my MB for some proprietary work software which is pretty CPU intensive. Will this MBP give similar performance?