Even if i put it in low settings i wouldnt be able to play the game without choppiness?
probably not, Minimum requirements are just that, Min Req. which means the game will NOT run well on anything less, it may run, but not well, if it runs it will lag/low frame rate, possibly hang a lot, and probably be choppy or torn.
how old is your computer? makes me wonder because AGP has been out for over 10 years (1997 release) , was the most popular video interface in the early 2000's and began to be phased out in 2004 when PCIe was released. So for you to be on PCI means that either the system is WAY OLD, or than it was a very inexpensive computer at the time that chose to go PCI or onboard video vs AGP to keep cost down.
are you positive that it's PCI and not AGP or PCIe? is the slot the card plugs into white or another color? AGP slots are typically brown with a lock clip/slider at the back of the slot but can be a few other colors. PCI slots will be white. PCIe slots should be black and will also have some sort of lock clip, usually a push lever. double check this to be sure before you buy anything.
if truely PCI that is your biggest problem as it is not capable of running higher frequency. PCI bus runs on 33 or 66Mhz depending on the version
AGP runs a little faster (upto 533Mhz) and greatly increases performace over PCI. and likewise PCIe blows the doors off AGP. However 6200 cards and up ARE available in ALL 3 interfaces.
newegg.com has a few PCI cards in the nVidia 8400 or even the 9000 series for $50-$100.
a $50 8400 might help you but I have not seen how the newer cards run on PCI interface nor looked at any bench marks for them. 2 things are for sure though, it will be better that what you have, but they will not be any where close to their AGP or PCIe counter parts.
or if you are AGP newegg has some ATI cards in the X-series, or HD 2000 or 3000 for the same price range which will be a comparative equivalent. if I remember correctly the X-series was ATI's series during the same period of the nVidia 6000 and early 7000 series. moving to the HD 2000/3000 about the time nVidia was putting out the med-high 7000 series, and then the HD 4000 about the time the 8800 cards came out to current. all they have for nVidia in AGP is the 6200, (no help).
good luck
don't take this post as saying your PC completely sucks, just trying to be informative as well as I know how frustrating it can be trying to do whatever upgrade you can to meet game requirements. I battled the same thing for a few years in the early 2000's