Ok, I Currently have a HP p6310y and it came with the integrated Nvidia GeForce 9100 chip and I'm looking to upgrade to a better graphics card but I'm not sure what would/would not work with my computer & dont want to spend $100-200 on a graphics card that wont work with my computer. So I wanna know what would be a good upgrade for me? I'd really like something as good as a Nvidia GT9800 because I love PC gaming lol. Anyways my system specs are HERE. Just scroll down and click SHOW next to SPECIFICATIONS.

Thanks in advance and reps to anyone who can help me!