One word of warning guys,
with most of these 'free' registration deals, you need to read the small print about who actually OWNS the name. I looked at a couple of these and found that since the ISP owned the name, if I wanted for example to move to a different hosting operation - like to get a different deal - I needed host who could support ColdFusion, then the bill was going to be scary to buy back 'my' domain name. They were registering the name under their own title with Nominet and would only sell it to me at their price.
Just something to be aware of and may not even be relevant for your needs.