Thanks to to original poster here when they were £34.97 http://www.hotukdeals.com/item/521396/belkin-powerline-homeplug-starter-k?
They were reduced down to £19.97 for the starter kit (pair) on Friday 13/11/09 and the single units were only £9.97
"Powerline Turbo kit allows you to reliably transmit content from your Internet directly to your computer and other network devices through the electrical wires in your home. For areas in a home that are hard to reach by wireless connections, Powerline is the most reliable solution for providing secure Internet connectivity to these remote areas."
Yes, they are only 85Mbps but unless you want to stream HD video then for many needs other than that these will do the job and they are a premium brand at a rock bottom price. I only want to use a broadband connection so that speed (up to 8Mbps (usually 4) is the restricting factor and not the powerline plug speed.
It will be local store only now as it is a clearance deal but I found stock in 2 local branches and PCWorld may have some left.