The IDEs you've been looking at have no visual GUI designers. For that, you can check Boa Constructor or PythonCard. These two are based on the wxPython toolkits. There are other commercial IDEs based on QT but I cannot comment on these cause I've never used them.
Visual Python is a plug-in for Visual Studio, but it only gives you syntax highlitning, code completion and things like that. No visual GUI designer at all... IMHO, Komodo or WingIde don't offer anything that can't be found in free products. For example , if you download PythonCard (which is a GUI designer) you get also PyCrust, which is a cool and lightweight IDE that gives you almost all the features of Komodo or WingIDE for free. PythonCard is not as fully complete as Visual Studio or Delphi, but it offers a very simple way of building GUIs by dragging and droping widgets (ala Visual Basic). Its features are somewhat basic but enough for creating simple GUI apps. Hope it helps... -- http://mail.python.org/mailman/listinfo/python-list