I have had my laptop for a little over 6 months, have cleaned it twice. Yesterday while sitting idle my laptop reached 100 C I took a can of air to the vents and held it there and a major dust bunny came out. Now my laptop even playing heavy games only reaches 75 C and normal idle now sits at 48C I am so happy but I think we need an evil dust bunny catcher so that they don't get in there again LOL.
I was a paycheck away from buying a new laptop and selling this one so I could stop the madness of the heat, now that I know the "radiator" gets clogged up easy I can be happy with my laptop again and start enjoying windows 7.
So anyone with a laptop clean those vents and "radiator" out often so you don't burn out your machine.