|P is for Practical|
I've chased this particular rabbit down an alarming number of holes over the past several years.
I have a couple of suggestions (but they don't involve any of the software you've mentioned):
You mention SAMIE and Win32::IE::Mechanize, so I'm going to assume that you're working on a Windows platform with Internet Explorer. Far and away the best IE test driver I have ever seen is called WATIR and runs under Ruby. It works by directly manipulating the DOM/COM interface in IE. The developers on the project are great, and have implemented a lot of features at users' request. The WATIR framework is far superior to SAMIE, IMO.
If you are interested in cross-browser testing, both Selenium and IEUnit I think show a lot of promise, but they have limitations that make them impractical for my particular project.
Please let us know your experience, as there are many other monks attempting this work, also.
In reply to Re: Automation and Manual testing using HTTP::Recorder