Last summer I spilled a drink on my old 13" Macbook that's running 10.5.8. The keyboard is ruined, and the top case is splitting. I'm currently using an external keyboard to type on it. I think it's time for an upgrade. I was pointed in the direction of the 15" MBP when I mentioned Diablo 3. The $ jump between 13" and 15" is pretty large, especially for one videogame. I also prefer the 13" size. I was set on the 15" model, either current or the updated version due to the performance boost for the game...but this morning I started thinking that maybe the Intel HD4000 will provide enough of a performance boost to not require the dedicated GPU in the 15" model. In which case I can get the best of all worlds (13" comp, lower $, and a computer for both college and the game). Any thoughts on this? Any gaming benchmarks tested with this chip? I'm pretty sure I'm going to stick with a Mac laptop, but any comparable Lenovo/Asus suggestions would also be appreciated.