AJAX Application testing tools

Hi all,
We are looking for a good tool to permit us to stress test an App Composer application. I know that we can use the ‘trace’ tool to do basic timing tests but we’d like to do more scripted testing with the ability to check the results… (Yeah I know, we’re not asking for much…).
There are various web app testing tools, but not many are ‘AJAX aware’…
Just to add to the mix, we’d also like to use these tools to do regression testing (JUnit style).

Can anyone share their testing experiences?

Thanks
Ian Ward

Have you looked at JMeter or Selenium? JMeter seems like the more mature product.