I have moved my blog to Tumblr due to some unforseen problems with moving my domain from Google Apps to Blogger.
It seems that some of the configuration for www.daveclayton.info was left in place after I removed Google Apps, and I was unable to register this as a URL for the Blogger site. I could not login to the Apps admin pages to fix this as Apps had been deleted for the domain (the administration pages were unavailable), and the config in Google Sites had been deleted too. After confirming that the DNS A and CNAME records were correct and waiting over 72h (3 times the TTL for the above) I was still receiving the error: “Another blog is already hosted at this address”.
After a further week the problem is still occurring, so an alternative is used.