Low Profile Graphics Card for Max Quality FPSs

So, I recently bought an American Inspiron 580s.
Detailed specs here.
I also bought the Dell monitor IN2010N. It's a cheap, 1600 x 900 monitor.

I play FPSs, more specifically BFBC2 and COD MW2. However, I just recently realized that I was running the game at only 12xx by 7xx. So I increased it to the maximum my monitor could handle, which is 1600 x 900. I then realized that my current graphics card (NVIDIA GeForce G310), couldn't run it at the max. The game became all choppy and my scores deteriorated. That's why I'm looking for a new graphics card.

Unfortunately, my 580s has slim casing. So I'm looking for a good enough low profile graphics card to run high quality FPSs with smooth graphics. I really can't find much... So I'm just looking for a few tips about which graphics card to get and which is the best one to solve my problem.

My budget isn't really the amount of money, just that the graphics card is a good enough one for the price given.

Any help would be appreciated.

Best I can think of that comes to might right off hand, is the GT 220 or GT 240 (slim version). Nothing super impressive, but might do the trick.

damn, i didnt saw that ur computer was that little, haha, i think you could fit a 9800 gt in that which is better that the gt 240 and the gt 220

So can a GT 220 and better run the games at maximum graphics? I know the 9800 and the 5770 are better, but are they necessary?

Get a low profile HD 5770 because the GT 240/220 are not powerful enough to run BF BC2 at that resolution.

so a 5670 would work on a 250w power supply?

On an ordinary 250w I would say it is iffy but Dell uses good power supplies and underrates them so it should be more than fine.

well I contacted msi now, just waiting for a reply. its on the UK's site product page so that might be a sign its coming soon. the ironic thing is that the 5670's in the UK cost less then the 5570's.

As I said earlier your power supply is 250w.
The low profile cards are skinnier, it should be easy to spot. Even with replacing the power supply the best you will be able to do is that 9800GT I linked which while better than the HD5570 is still in the same general performance area. If you want a card that will actually be legitimately good for that resolution there is really nothing you can do besides replacing your case as well as the power supply.

i think ur psu has a tfx form factor. the most you can get in the uk is a 400w psu but its made by a unreliable company. there are more efficient options for 300w tfx psu's. seasonic and fsp make some of them. ive read that the low profile 9800gt comes with a 2x4pin molex to 6pin pcie adaptor in the box so find a psu that has at least 2 molex cables.

another option could be the low profile gts250. it does have 10-20% less performance then the normal gts250 but i think its the same situation with the 9800gt. it would be more risky since it uses more power.

I think for your PSU the best you are going to do is a GT 220. It will be much better than what you have, but not great. If you want a decent vid card you will need a better PSU in the 400w range.

its just how the psu is shaped. tfx is a thin power supply that will look like this in your computer.

No.
As I said earlier HD5570 or wait for the HD5670.