I had to actually deliver a course which is SCORM compliant and ran on Moodle. Because of small budget for the client, the choice was to go for an open source tool. I had eXe, courselab and one more thing in mind. The courselab won over exe in all wasy for me. I was able to integrate audio anywhere I wanted and was able to package a 15 screen course in just about 12 hours, and it is fully SCORM compliant. I was really happy with the speed at which I could make a course. It had a very familiar PPT type of environment so I didn't take much time to adjust. I am yet the figure out some of teh advanced features but i am sure they are as easy as others.