Cheapest I can find is £9.99 for WOW, and £14.99 for the expansion and thats on play.com.
Anywhere where I could get these two a bit cheaper? Any codes anywhere? Not had much luck finding any. Shame you have to spend at least £30 for that google checkout offer, found the two games on empiredirect, but of course the total cost is just under £25, so can't use the checkout offer.