Why Use Other When You Have Free Aptana Studio - Must For a Web Developer

Aptana Studio is one of the best free IDE around for writing AJAX code.
Aptana IDE has addon support for PHP, Ruby on Rails, Apple iPhone and Adobe® AIR™.
simply fantastic, Aptana has a very good support for Javascript programming with really powerful intellisense. I personally use Aptana studio with the php addon for my web development work.

Aptana.com