Mike, Thanks very much for this practical information. It's fine to dream, but I am glad someone with some down-to-earth know-how would chime in, as you did, and provide some information about how things are, and what can realistically be done. I've kept your post and am grateful that a few people are still thinking of possible solutions, expensive as they are, and demanding of people's time and energy as they are. Mary to view the list archives, go to: www.freelists.org/archives/optacon-l To unsubscribe at any time, just send a message to: optacon-l-request@xxxxxxxxxxxxx with the word "unsubscribe" (without the quotes) in the message subject. Tell your friends about the list. They can subscribe by sending a message to: optacon-l-request@xxxxxxxxxxxxx with the word "subscribe" (without the quotes) in the message subject.