Okay...get the eval of Rhino. If you do autocad, you probably can pick up how to work rhino in less than a day. (Go straight to the commands index, and memorize the ones you want to use.) I have Max, as well...but, due to all the functions, it has a steep, steep learning curve. Rhino is a very good, stable program. Although, that Discreet Viz sounds somewhat interesting. Best of Luck, Poppi