We had 6 years of WebCT, and from 2006 we have migrated all our online courses to Moodle, including the courses being part of our full online Virtual University (see http://www.ecampus.cl
Moodle is Moodle and WebCT is WebCT. What I try to say is don't try to find WebCT within Moodle, or vice versa. Of course both of them share several things, but if you try to create a Moodle course offering exactly what WebCT offers, then why are you migrating?. and then I could say that you will be only probably using 50% of Moodle. You will probably be using Content, Forums, Assignments, Quizzes and Gradebook.
What I suggest you is to study and try Moodle for you to redesign all your courses to take full advantage of Moodle, and if you really need something that Moodle doesn't offer, you can go and check if the community has a solution. We needed an internal e-mail tool, and the community had one.
For me, the Moodle community is a solid group of users, and one of the advantages I see when compared to WebCT or with any commercial Course Management System, is that this community is able hear itself, to incorporate into the product the latest technologies, bringing the best of the Web to Moodle.
With WebCT (now Blackboard) we felt development cycles were too slow to be up-to-date with what users are using right now or what users want from an Internet-based application. For example, our students are all of them using Webtops, such as customized Google hompage, or Pageflakes
, and they have the drag-and-drop modules, and the new Moodle 1.7 has incorporated that, it was faster than a bullet!.