What sort of gains would you expect? as I am looking at
http://www.overclockers.co.uk/showproduct.php?prodid=HD-233-SE&groupid=701&catid=14&subcat=1894
http://www.overclockers.co.uk/showproduct.php?prodid=HD-233-SE&groupid=701&catid=14&subcat=1894
