As I understand it there is also a problem with selling .co.uk names as there is a lot of paperwork involved - i.e. you have to sign papers and send them to Nominet and the buyer also has to sign the papers and send them to Nominet - all a lot of hassle compared to transferring a .com
There is a guy who says he makes good money from .co.uk - there was an interview about him in the Guardian and a post here -
http://www.netmonetization.com/2008...rom-clicks.html - he may even post on NP - his names appear to be a mixture of minisites and parked pages
There is also a thread somewhere on NP about a UK parking company - if somebody could pot the link - I can't find it