Graphics card upgrade for Dell Precision T1500

Is this your computer? http://i.dell.com/sites/content/business/solutions/broc...

If it is, it has a 350W psu, what kind of graphics card do you want? workstation or gaming ? and what's your budget?

Thanks! Yes - that is the computer. I'd like to upgrade for some online gaming but I'm new at this. My budget would be $75-125, if possible.

Safety, you can get an HD 7750, and it fits on your price range, we would need to know more about your computer specs (processor, drives, etc) to know if we can try putting something else.

EDIT: If you are only doing online games, then the HD 7750 should be enough. What's your current monitor resolution?

Thanks, Ste. This T1500 has the following:
Intel Core i7 processor - 870@2.93GHz
Installed memory 6GB
Windows 7 ultimate 32-bit
2 hard drives - 500 Gb & 1 Tb

Is there anything else you need?

Best answer selected by TZL.

Thanks!!!