I saw some laptop cooling fan board right in the front of Walgreen's the other day. I think it was $29.99 or something like that. I had an Alienware M17 and they have a lot of fans in them. It never had a problem from overheating, but it was hot to the touch. So a simple area fan might be good for that.
Man those things are heavy. It seemed to have two of everything inside.
Do you mean hot as in the bottom towards the back? The CPU and GPU are there so it's normal for that area to be hot. Use a program like HWMonitor to check the temps. If they're okay, which they should be, then you don't have to worry.