Feel free to post me an e-mail at firstname.lastname@example.org if you have any autocad related questions. The answer might show up as a new posting at my blog.
Also feel free to comment on my older posts.
Quick tip for the day:
When operating in 3D you can enter the 3D-orbit-mode by pressing the shift button at the same time as you are using the pan-function om your mouse (pressing the scroll-wheel).