you can get domain names from this site at 7.50 co.uk and for global domain name 25 pounds
here are the feastures of this site

All domain names include free web + e-mail forwarding
At Low Cost Names (UK) we provide a variety of Internet Services such as domain name registration, web hosting, dedicated servers and web design. We can register global domain names (.com, .net, .org, .biz, .info) and UK domain names (.co.uk, .org.uk, .me.uk) with the minimum of fuss and all domains come with free web + e-mail forwarding.