I just sent this email to the webmaster of Australian Unity:

Hi,

Why does your website require Windows and Internet Explorer when getting a quote? I just tested with a Macintosh running Firefox (and spoofing its user-agent as IE on a Windows XP machine) and the site worked perfectly - as it should. If I was a regular non-technical user I would have given up and you would have had no chance of getting my money, which seems counter-productive.

Please open your site up to standards-compliant browsers such as Firefox, Safari and Opera. Microsoft has enough money without web designers forcing us to give them more.

Regards,
Paul

Who wants to bet I get a canned response?