9800gtx here for just shy of £75 + i believe around £8 next day delivery not used these guys for a whileso that may have changed
the card is a bit dated bit but still a good card will more than cover your needs click here
it is oem so all you get is the card.
Requires a 16 lane pci slot check mobo documentation.
A minimum 500w powers supply required and you may have to buy seperate pci power adaptors for it
Also lenght wise this is a big card 275mm long so check it will fit in your case if you decide to go with it
having said that in the price range you are looking at this card will give you the best bang for your buck