a) E-DT – Desktop PC, No Monitor – Cost between $200-300.
Might be good as a second computer doing tasks that don’t require a lot, therefore taking some load off of a persons supercomputer.

b) E-Monitor – 19-21″ screen all in one desktop computer like iMac – Cost around $499.
I would not buy this for the same reason I would not buy an iMac, I like my parts to be replaceable by generic, off the shelf parts, by me.

c) E-TV – 42″ Plasma with computer technology on board running Linux.

Linux = good, Plasma = no, sounds like a repair nightmare.