How is this Computer For Gaming? Just want a second opinion?

It looks pretty good but you might want to switch the case fans to 120mm. Also the monitor could be a bit bigger because at that resolution you are kind of wasting your 5850. A monitor thats 1920*1080 is probably much better. If you want the 20 inch you could just change the 5850 for a 5770 and your eyes won't be able to see the difference. If you have a ton of cash to spare then an additional hard drive (a solid state one) wouldn't be bad. Other than that it looks good (though Intel has the best processors but for gaming you won't notice unless you are running huge monitors with crossfire set-ups) that Phenom should do nicely.