Looking for programming/gaming laptop

[aimforthehead]

I'm looking for a laptop that is good for programming and if possible, gaming at a relatively low price. And very importantly, I want it to run cool and last long.
Not interested in Mac, Windows 7/8 and Linux only.

Something around what I'm looking for:
Quad-core processor (if possible, otherwise a fast dual-core or tri-core).
4-6GB ram.
500+GB HDD
Not familiar with laptop GPU's, but I'd like to at least play games like L4D2.
Price Range: Less than $500.00, preferably $400.00.
And I'm looking for a laptop that runs as cool as possible, because I need it to last.

Thank you all for your time!

 

[Madn3ss795]

You can't get a laptop with those criteria at that price range. Unless it's an almost broken used laptop using 1st generation i7 quad core CPU.

 

[aimforthehead]

I'm not quite sure why you guys were saying there simply isn't anything that good and that cheap, the suggested laptops were exactly what I was looking for!
However, I won't have a chance to check any of them out because I happened upon a free Macbook Pro, which leads to my next question...
Is it possible to remove OSX and install Ubuntu or Windows as the sole OS?

 

[Madn3ss795]

^No, you can't remove OSX from a Macbook.