MicroStation V8i Select Series 3 is a great all around drafting/design tool.
"I love Microstation's AccuDraw feature. It makes drawing so much faster and more precise. There are also many other features of the program that I like. References is a very powerful tool here. You can manipulate a reference file straight from your current file. You can change color, lineweight, linetype, transparency of individual levels. You can copy in (merge) only the items you want..."