Next Best upgrade to my current video card

[dell]

I have a Dell Optiplex GX270 (mini tower) with a Intel Extreme Graphics 2 video card, 250mhz CPU..I would like to know what is the best video card to upgrade from Intel Extrema Graphics for Flight simulator 2004 without having to upgrade my CPU and RAM and so forth, just looking for crisper Graphics and such but nothing really mind blowing that will require me to upgrade the rest of my pc. Thanks

 

[claptonman]

You'll have to get a new power supply to get any video card that is worth getting. Also, there doesn't seem to be any room in the case, so you might need to get a different case, also.