Should I get a new video card

Hello,

I'm currently running a WinXP Home system with the following hardware:

AMD BARTON 2500+ 128MB nVidia GeForce Fx5200 GIGABYTE MAINBOARD GA7VT600PL 1024 DDR RAM AOpen DVD recorder LG CDRW

Taking into account all components, would I benefit from getting a better video card ? I play mostly Battlefield 1942 (pure) and find that my system does very well overall with the graphics but at certain times when the action is very busy with lots of online players and explosions, especially in Battle for Britain, that my display gets choppy, only to recover when the action ceases up a bit. Also, I can't run the Desert Combat mod nor then Battlefield Vietnam 'cause my system (or perhaps the video card?) can't keep up. First of all can I benefit significantly from upgrading my video card ? Second, which card would you suggest ? Please note that I don't have the money for top of the line cards and would only be comfortable with something more budget oriented. Is it realistic then to get a bump in graphic performace for relatively little money while keeping the rest of my hardware as is ? Actually my pc is fairly new so I'd prefer not to do a major upgrade.

Thanks for your time and reply,

Daniel