Tim, your experience with using CAD on old computers and mention of "math co-processor" are likely the reasons for my reluctance to buy something that isn't Intel and w/o my own experience running CAD on.
Talk about being stuck in techno time!
Well...I though I had found a low cost ultra-portable...until further internet searching turned up this guy's review
I guess I'll wait for Averatec to work out the issues. I can wait until after the holidays when all price come down.
http://www.epinions.com/content_270450462340