Thanks guys for your insight. I appreciate the education.

Cost is not a big concern, but I don't want to waste money. If its small enough I might pop the tablet in my bag to play around with it on the plane while I'm on business trips. Working with MOI on my 13.3" screen is a little confining, but Sculptris would probably be OK.

I think I'll buy the Intuos4 small.

I prefer smaller tablets. The less distance I have to move my pen to get across the screen the better.

I don't think you gain any detail or control with a large tablet. Personal preference I guess.

I wopuld think it may be how you like to draw... Some people like to draw with sweeping motions from the elbow pivot... Some from the wrist.. It's hard to pivot your elbow with detail on a 4X8.

I finally watched the second video. I actually played with Alias Sketchbook a little bit last year during beta when they were developing the AutoCAD plugin. The plugin is cool because you can use it colorize/stylize your technical drawings and I believe there is also a Sketchbook to AutoCAD vector converter so you can take sketches into AutoCAD pretty easily. I was hoping for a replacement for Autodesk Impression... sadly Sketchbook doesn't quite fit the bill, that and I needed a tablet to really make any efficient use of Alias Sketch... It's only 2D, but very cool in the hands of a pro. BTW-there is a sketchbook for iPad/iPhone it's cheap, but works quite well.