Well, for what i found, its well worth it, as an ati radeon hd4850 is usually bout £100, i found one for £40. my computer itself is terrible for graphics lol, but im getting a total rebuild, im getting a ati radeon hd4850, a sound card, a new internal speaker and since i have 2 ports for processors, im getting a second one, that all adds up to £93 so im well chuffed, hope this link helps for a new graphics card:
912-V151-022 *MSI ATI 4850 512MB DDR3 PCI-E GRAPHICS CARD
i know im sayin a lot of crap, lol but if u have another port for a processor, it wouldnt be a bad investment, i already have a 2.6ghz processor and i'm getting a 2.8ghz one for £20, my computer uses xeon processors, i would recommend them as they use less electricity and can save u a considerable bit on your bills
Yours sincerly Pearse