hello all, i am very interested in purchasing the academic version of cinema 4d, but had a few questions. i am a student, that is not a problem, what form of proof do i need to submit and do i submit it before or after the order is placed? what limitations are place on the academic version? compared to the commercial version, i do realize that it cannot be used commercially. finally, is it a physical shipment or a download (i know that is a stupid question, never hurts to ask though). thank you in advance for you time and assistance! eric b.