Simply do not leave your well-money invested notebook to overheating. After some time, you will see instabilities and at the worst situations your gadget will not have long lifespan. Antec Notebook Cooler is currently one of the best USB-powered coolers not needing batteries or power adapter.

It has two modes, so you can have it low when just surfing the net and then high when playing high level graphic games or movies.
No more heat, no more shut downs, and no more lost data. It is currently sold with nice discount at Amazon.com