Does anyone know of a good Integrated Development
Enviroment software
I do not. All IDEs suffer from the developers NIH attitude. Every IDE I have seen has been "it is all made here". If someone were to make a 'real' IDE, they would make one that e.g. used Keil for the compiler, CodeWright for the editor, CEIBO for the ICE etc. That way every part would be done by people that knew what they were doing.

The IDE by Keil (which is the base for the Cygnal IDE) has one of the most miserable editors in the industry, but, of course, if an IDE is more important to you than the parts, go ahead.

Erik