i am wondering about whether or not I should buy a used graphics card this is the card
http://www.ebay.co.uk/itm/Gigabyte-GTX-760-NVIDIA-2GB-GDDR5-Windforce-OC-Version-Graphics-Card-/141490531996?pt=UK_Computing_Computer_Components_Graphics_Video_TV_Cards_TW&hash=item20f17e2e9c
http://www.ebay.co.uk/itm/Gigabyte-GTX-760-NVIDIA-2GB-GDDR5-Windforce-OC-Version-Graphics-Card-/141490531996?pt=UK_Computing_Computer_Components_Graphics_Video_TV_Cards_TW&hash=item20f17e2e9c