X-fi Extreme

[New User]

Apart from spending an extra £40, what would I gain buying this:

http://www.overclockers.co.uk/showproduct.php?prodid=SC-044-CL&groupid=701&catid=11&subcat=

Over this:

http://www.overclockers.co.uk/showproduct.php?prodid=SC-051-CL&groupid=701&catid=11&subcat=


Anything worth the extra?