I use mostly 3d studio cuz it's compatible with cad since Discreet is owned by Autodesk. But my weapon of choice is Softimage XSI for now since i have Maya Unlimited but haven't got the 5000$ for the 2 week training program. Yet. Check ou 3dcafe.com for tutorials. BTW, I wouldn't have done close to yours without going to school. I prolly would have PS the background