I just came across this tweet from Matt McGee in my Twitter flow :
@mattmcgee if you don’t believe in the power of exact-match domains, you’re nuts. 
If you are unfamiliar with the term “exact-match domain” it is referring to the words of a domain name that exactly match a popular search phrase.
It is a little hard to believe that in 2009 the search engines put so much weight on the domain name, but some quick searches easily bear out the importance of the domain name.
Here is just one arbitrary example: go to Google and search for “model boats”. You will see that virtually every one of the matching urls on the first page has one or both of the words in it.
You can easily do some more searching on your own to verify the importance of the domain name.
Sure, there are still many other important SEO factors, but the domain name is huge. If organic search placement is critical to your success, don’t overlook the importance of securing a name that matches your top phrase.
