Sherri at UNLV is looking for other opinions...
I'm currently evaluating tutorial software for both instruction (emphasis: tutorials, scoring and evalution mechanisms) and distance education (emphasis: not so much the scoring aspect but learning and instructional applications). I've worked previously with Qarbon's ViewletBuilder and really enjoyed the simplicity and ease of use. I've also been taking a closer look at Macromedia's Captivate. Only thing is, I haven't had a lot of experience using it and haven't had a lot of luck finding too many reviews that are written from the academic eLearning perspective. We currently have two licenses of Camtasia Studio installed on workstations that are available for public use (not ideal for staff), but I've never been a fan of Camtasia anyway.
Robin Good offers a comprehensive comparison of ViewletBuilder and Camtasia in "Creating interactive learning tutorials for software"
Leave a comment if you have experiences that you'd like to share in using any of these (or other unmentioned) software packages.