Learn HTML and download google sketchup, there both free, once you've learned HTML and can make a page in notepad your going to get somewhere with the 3D side of things. Make some random stuff in Google Sketchup, anything. Build anything, i've tried building the stargate. This will help you understand the building enviroment as well as the way a standard script works. Once you've masted HTML and feel confident in Sketchup, Move on to profesional things like, 3DS Max and other 3D Graphics Editors. If you own a COD game download Radiant and make some levels, it encorporates both script and design. Check out flash CS4 as well.