Hello, everyone, and thanks for all of the suggestions.
AntiZig: The iPad won't work b/c I have to sign on to a website to do my work, and the only way to sign on is to be attached to a "regular" computer, which negates the whole purpose of having the tablet! And also the iPad doesn't have Adobe Flash Player, which the work website requires.
Nordlead, I considered getting either that or the Lenovo that has the swivel screen. But they are all so expensive!
Anyway, I've finally settled on what will be a happy compromise - the Shuttle V50 portable all-in-one (with Ubuntu installed) , to which I can attach my old-fashioned keyboard. And I will have to have a separate external optical drive. I decided against a Windows tablet b/c I'm going to give other OS's a try.
I guess I'm the only one in the world who can't stand typing on and laptop AND viewing the screen at the same time. Perhaps others are more evolved, and I'm the last of a dying breed!