Just started looking at automated web site testing tools and found this one:

AdventNet QEngine
AdventNet QEngine is a 100% web-based test automation tool for Web application functional testing, Web application performance testing, Web service functional testing and Web service performance testing of web applications and web services. All you need is just a browser to connect, from anywhere, to the QEngine server for the automated testing of your web applications developed using HTML, JSP, ASP, .NET, PHP, JavaScript/VBScript, e-commerce, etc., and web services that are bound with the SOAP/HTTP binding.

Going to give it a test and see how it works. I’ll update this post with results and other products I’ve found.