Thaks guys. I just changed out the broken hinges on an old T41 that my nuse uses -- what a pain. Took a couple of hours. Why do I waste my time on this sort of thing?? That frees up the T61P that I lent her, and so today, I will put the old hard drive back in the T61P and boot up the SBS Essentials disk. Have to get some hands on with it before I make any further decisions.
I'll create a trial network with some other machines around the house and load AC over the next few days. You understand, I have to do this when my wife isn't looking -- I think she would prefer I look at pornographic sites than spend time with this office computer stuff! I always have to do my office work from home -- staying late isn't an option -- so this server setup with better remote access and control sounds like just the ticket. When I figure it out, that is. I can't see much point in Exchange, and I don't understand what SharePoint is for -- that may come after I get my feet wet with the basics.