Don\'t know where you live but here are some prices (in euros) for a couple of video cards
VGA RIVA TNT II M64 32Mb ? 29,50
VGA GeForce2 MX400 64Mb ? 45,00
VGA GeForce4 MX440 64Mb DDR ? 57,50
VGA GeForce2 MX400 64Mb PCI ? 75,00
VGA Geforce4 Ti4200 64Mb ? 149,00
Asus V9180 T8x MX440 64Mb ? 80,00
Asus V9280 TD8x Ti4200 128Mb ? 189,00
MSI Geforce4 MX440 SE-T 64Mb ? 72,00
MSI Geforce4 MX440 TD8x 64Mb ? 109,00
MSI Geforce4 Ti4200 TD8x 128Mb ? 209,00
Hercules ATI 9000 128Mb ? 149,00
Hercules ATI 9700 Pro 128Mb ? 445,00
Creative 3DB Personal Cinema ? 129,00
Creative 3DB4 Ti4200 64Mb DDR ? 159,00
Matrox G550 Dualhead 32Mb AGP ? 139,00
i would go for the GF4 Ti 4200 from Asus
Good performance for a reasonable price.