IMPORTCDS.COM have their 10% off site-wide sale on at the min... So the cheapest site on the net is now even cheaper!
Oh and I dunno how or why but I see importcds have stopped putting prices on the front of their packets and now have a royalmail sticker saying postage paid on them ?! I've had quite a few double orders come through now without a customs charge too so I'm half tempted to say that there seems to be no customs fees with them now, but - please - don't hold me to that