Is it worth paying the extra 50 quid for the super over clock? Here are the 2 cards i'm looking at
http://www.overclockers.co.uk/showproduct.php?prodid=GX-079-GI&groupid=701&catid=1914&subcat=1750
http://www.overclockers.co.uk/showproduct.php?prodid=GX-124-GW&groupid=701&catid=1914&subcat=1750
http://www.overclockers.co.uk/showproduct.php?prodid=GX-079-GI&groupid=701&catid=1914&subcat=1750
http://www.overclockers.co.uk/showproduct.php?prodid=GX-124-GW&groupid=701&catid=1914&subcat=1750