Not yet, plan to after beating Gears of War. Glad you're liking it.
Have you started the Witcher 2? It's a really cool game.
Yeah, that's what I read. Oh well, it was worth a thought I guess.
Overclocking a CPU usually doesn't do a whole lot, maybe get you a few more frames. Doing it on a laptop usually isn't recommended anyway since they usually don't have the airflow and good enough cooling to handle it.