Here is a really good PyQt 101 tutorial: http://zetcode.com/tutorials/pyqt4/
The great part about this tutorial is that is walks you through all the steps you need to get started, without Designer :) At some point I plan to address using PyQt in Maya through some tutorials. I will be sure to post here when they are complete. I would recommend not using from Py... import * It makes your code harder to read, and kills the namespace. # Remember import this Namespaces are one honking great idea -- let's do more of those! -- http://groups.google.com/group/python_inside_maya
