Graphics - PCI

128Mb Geforce FX5200 £40
512Mb Geforce 8400GS £55

Graphics - AGP

Geforce FX5200 128Mb £27
Geforce 6200 256Mb £40
Radeon HD 3450 512Mb £40
 
 

Graphics - PCI-Express

Geforce 8400GS 512Mb £37
ATI Radeon HD 4670 1Gb £75
nVidia GT 430 1Gb £75