I currently own, and am looking to replace my Late 2008 15" 2.53GHz Dual Core 2 MBP (4GB RAM memory and dedicated NVIDIA GeForce 9600M GT 512mb graphics card). Graphics/performance wise, I want my next purchase to perform just as well as my current model in the following areas: 1. Photoshop editing 2. CAD 3. Video editing using Final Cut Express Would I need to go for the 2.2GHz model with the AMD Radeon HD 6750M with 1GB graphics card, or will the 2.0GHz model with the AMD Radeon HD 6490M 256MB graphics card perform just as good as my current graphics card? I will be sticking with 4GB RAM memory for the time being. I'm not really clued up on graphics cards so any advice will be much appreciated.