ZBrush Anyone?

It’s been a couple years since anyone replied to this post, and I wanted to know if anything has changed since. I work for a mostly soft goods company, but we have the occasional hard part. I haven’t used Rhino since school so it’s like learning it all over again, and it seems like it would be easier to do some concepting first and then dropping the model into rhino for further refining. Does anyone know the difference between ZBrush and Autodesk Mudbox?

And on another topic, does anyone know of a site similar to this one for IDers? I’d like to find some online classes (apart from online school) on Rhino or Autodesk Alias Design.

http://beta.workshops.cgsociety.org/