Err... I don't think a computer would boot up at all without a monitor, and a keyboard. But that would not be a problem though. You can use a program called <A HREF="http
/www.uk.research.att.com/vnc/" target="_new">VNC</A> (Virtual Network Computing) that would allow you to view the screen of the other computer via a network, pretty much like Microsoft Netmeeting's remote desktop sharing, but better. I use it myself, and the way I do it is to have the 'client' computer to have cheapo keyboards and mouse (just to complete the circuit to make it boot) and share the monitor for 2 computers. When Windows is loaded, I can use the monitor for the computer you are using to control . Then with the NVC I can connect to the client computer and then control it remotely. You can even connect it through Internet, provided that you have sufficient bandwidth.
More importantly, the software is free!
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This site is cool.