jsLex looks neat (it’s an Eclipse plugin):

jsLex gives developers a complete picture of the performance issues with-in thier Ajax application. By auto injecting profiling code using jsLex ant task, developers don’t need to modify their code to track down bottlenecks, minimizing coding erros and saving time.

Looks like it does quite a bit more than that look at the features page.

I’ve been so busy but I need to find some time to tinker with these tools.  I still have tried out  CubicTest either! And today I noticed Bromine!

Bromine is a fully fledged QA tool that integrates with Selenium Core and Selenium Remote Control. It makes the life of testers, test managers, developers and other people who would have an interest in how the development of a web application is progressing.

Too many tools and not enough time!!