It's actually this Vengeance on offer not the one you linked to -
http://www.overclockers.co.uk/showproduct.php?prodid=MY-299-CS&groupid=701&catid=8&subcat=1517
What's the difference between the two vengeance?
Also what is the difference between those you linked and this that I was looking at?
http://www.overclockers.co.uk/showproduct.php?prodid=MY-060-GS
The G Skill RAM uses CAS9 timings and is £5 cheaper. Should I go for that?
xms seems gud deal. will this work with SB