A full featured IDE for building websites and web applications
Pros & Cons:
Aptana Studio, which is based on the well-known, open-source Eclipse IDE that is popular among Java developers, focuses on modern web 2.0 development techniques.
Aptana Studio plugins enable source control and over 1,000 other third-party extensions.
There is a pro version (which includes a few other features), but the free version is more then enough for any web developer (from beginner to advance). I personally love Aptana studio, and recommend it to any developer wanting a full featured IDE for building websites, web applications, desktop applications (with the adobe air plugin), etc.
Aptana Studio was reviewed by Gizmos Freeware on based on version 3.