I'm doing enamel on sterling silver. I like to design. I'm using Rhino 4.0. I'm looking into rapid prototyping. I was a computer systems manager for longer enough I got burned out and went to this (an old love). So what is the first thing I buy for jewelry? A new computer. Some things you just can't fix. Once a geek always a geek (and PROUD of it). Justine; www.enamelation.com