Auto generating AS3 VO classes from WSDL

Currently I use Eclipse to generate VO classes from the WSDL.

The problem with that is that I can't override the classes and add more properties and functions as I need.

A possible solution is to use a custom code generator that will generate the classes on my conditions. Then I can define a class to extend my classes and not the model's classes, or set all base classes to extend EventDispatcher, etc.

Moreover - then I won't be influenced by the changes done in Flex builder during the versions (the Flex builder generates completely different code than the Flash builder 4).

1. Is there any other way to add my own functions and properties to the VOs?

2. What code generation software do you recommend?