So if you decided that you REALLY hate Adventure Works Cycle and MUST use something else, I just found a great article on the Sandbox written by the Program Manager in charge of the Demo Data in CRM. (Along with other things.) Enjoy!

http://gotdotnet.com/codegallery/customization/uploadedhtmlpage.aspx?FileID=1de72a03-9e7a-422b-a9a6-2596912de7ee&id=b6499eb0-0eae-4597-b38e-ee9cbc71a404