I have another thought, possiblity, what have you , regarding the computer(s).
I was looking at the picture from ravenstree.com, the one taken April 24, 2005, with Raven at the computer, with Kaiden in his lap. I wonder if it's possible that instead of having a traditional desktop, if Raven in fact had only the laptop, and used a port to connect it to the monitor? That way the laptop is always flexible..you just pull it out of the port, and off you go. I enlarged the pic and brightened it, but I couldn't really tell much... looks like it might be a flat screen monitor, but otherwise I couldn't really tell if there might be a docking port there for a laptop or not.....
Even so, if that were the case, and the laptop had been removed from the port, the keyboard and monitor would still presumably be there....