I did have my heart heart set on updating to another MacBook Pro from my current one which I bought in mid-2007 (Which is finally showing age now that I'm on ML). The main reason I wanted a MBP was due to the dedicated GPU, since I do some light gaming, mainly blizzard games and Torch Light. Now, my current GPU is a 8600GT and can only play games on minimum settings. How does the HD 4000 hold up against a 8600GT since I know most integrated GPUs are garbage? I'm not the type that needs to play games on high or bust. Any word on the HD 5000 compared to the HD 4000? Thanks!