Some good news from Nominet for domain owners who hate paperwork, from May 2012 you’ll be able to register a .uk domain name for between 1 and 10 years, with the wholesale cost at £3.50 + VAT for 1 year, £5 + VAT for 2 years, and £2.50 for each additional year after that.
This is in line with how things work for .com and most other domains, and seems a fairly sensible decision to me. Based on retail pricing from people like DomainMonster, we’re probably looking at around £35 for a 10 year UK domain registration.