I recently stumbled across an Ajax article on sys-con that I can relate to How Hard is AJAX Coding? . I run into issues like this all the time. This article made me think of putting together a quick list of Ajax tools I have become a custom to using.
FireFox Poster has proven to be a nice little tool for testing my HTTP Based services. Project Zero has an REST Doc tester now, and it provides some meta-data rendering based on RESTdoc. This is really cool because I can get a sample of my RESTful service.
As an IDE, I usually use Eclipse Europa but also have installed the Aptana Plug-in, Recently, RAD 7.5 has released an Open Beta based on Europa that you may want to try out.
I am interested in knowing what other tools people use out there?