Was thinking of taking up WoW again after a long time off it and found the Burning Crusade expansion pack on gameplay for only £6.99 delivered. Ordered and delivered very quickly even having chosen the 2nd class delivery for free (first is 99p).
Brilliant service and very reasonable so I thought I'd share (even though this is the old pack.)
If you like, great.
It is for both PC and Mac.
If you don't know about WoW you will have to purchase the actual game first but there is an official free 10 day trial available on a google search.