Chairman Ray said:
A radeon 7850 will fit your needs perfectly, and is below your budget.
For your build, may I suggest getting a 500w psu, and an H77 chipset motherboard. You build will not go above 400w power usage, so 500w will be safe. You can save some money by getting an H77 motherboard since you are not overclocking.
Another thing you may wish to consider is your monitor size. 27 inches is an awkward size. It's too big for a desk, but too small as a TV, so unless you have a setup that puts your monitor at an appropriate distance, I would recommend either upsizing or downsizing. You should get a monitor that will fit in your entire field of vision. If you are playing on a desk, somewhere around 21-23 inches is ideal.
I really do appreciate your input. The above build I listed is what I currently have and I decided to put off on a video card until later and its that time to buy one. Surprisingly to you , I suppose, the 27 inch monitor is great for my setup. I don't have a very large area to deal with it, but it is comfortable to me to game on. I blindedly bought some parts out of impulse. It worked, it was in my budget, so I bought it. Now I've gained more information and wished I had bought some different parts.
Now the 7850 will run everything on max, correct? Would you recommend an nvidia card over AMD for any reason?