Overclockers.co.uk are selling a 9590 4.7ghz/5.0ghz boost for £140. Only six left at time of posting. Thought you guys might want to know.
http://www.overclockers.co.uk/showproduct.php?prodid=CP-371-AM
EDIT: Just filling out details. Their shipping is pretty good. In Ireland it is only about £10 to ship stuff here from the UK. Sometimes less for small things like this. And their returns are great if there are any problems.