Coming from Maya or 3DSMax into Softimage|XSI? No problem! In this quick tutorial you will learn how to change shortcuts inside Softimage|XSI to Maya or 3DSMax for faster familiar feel while working in your projects. Learning quickly and efficiently is the key to mastering Softimage|XSI.
http://www.cgarena.com/freestuff/tutorials/xsi/i3d/interaction_model.html