Good one esh.
Another tool I have installed is the Netcraft Toolbar (
http://toolbar.netcraft.com)
This gives you a rough idea how long the site has been up (or at least how long ago they discovered it), whether the site has been reported as a phishing site (you can report sites from the toolbar) and also who owns the IP address associated with the site (usually the web host or organisation).
Clicking site report will take you to a page showing other info collated about the site such as the webserver O/S and webserver software (though if its behind a load balancer such as a Citrix NetScaler or F5 Big IP this will be inaccurate)