Well, you don't really have place for extra fans or water cooling inside a laptop, the solution is probably something like
http://en.wikipedia.org/wiki/Laptop_cooler, goes in line with Spiney's experience: get a few fans blowing from underneath, either a factory made solution, or construct it by yourself. Laptops weren't intended for gaming, they were intended for miscellaneous work and office work; the heat produced in intensive gaming is too high to get out by normal measures. Some laptops make gaming, no doubt about it, but the mechanical construction is at its edge - you get enough of energy in as heat, you also have to get it out.
"Real gamers", and I'm not one

, have up to 6 or 8 fans... not to mention overclockers, a cast of their own, they use liquid nitrogen to cool the processor

. But I'd say, generally,
you have no real need to worry about temps. 65 degrees at 89% usage is quite safe. Normally your usage will be far below the 89%, meaning lower temperature. No need to panic, that is. And modern components are sturdy, the first thing you most likely will experience in a potential situation of overheating is not breaking down of components, but system shutdown: your Windows will go down, but your components will survive --- a reboot, and there you go. In case you experience frequent shutdowns, you need to get conserned --- otherwise not, in my opinion.
But cooling, yes, you can hardly have too much of it.
Whipsey... "Singing in the rain".
Life is a comedy to those who think, a tragedy to those who feel. - Jean Racine