Advice On Free Automatic GUI Testing Tool

[ekt]

I need a tool that launch the product I want to test (win32) and execute a list of pre-recorded actions such as selecting menu items, press buttons, fill input fields (ie: filling textbox, selecting specific item from a combo)
Finally there should be a way to assert for results i expect (a form is open, a list has items, a label has some text, etc)

There are many tools like this on the market. Some free, some paid. I've quickly checked some (AppPerfect, win32::GuiTes, AutoIt, Rationale Robot) but as often is the case, the most valuable thing would be an advice from someone who has already made some experience.

Did you found the perfect tool for this task? Do you have any tip you can share?

thanks in advance
Ettore

[PolyVox]

Well I know the lead tester where I work uses AutoIt, but I haven't used it myself. He did find some bugs though so I guess it works