With VTBook PCMCIA video card you can run 3 additional monitors off of your Notebook, for a total of 4 displays (including the notebook's monitor)... http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290126565998 B
I am a trader in the markets and life! What's the point to hang on to stuff that you no longer need, while others can still get great value out of it? Not to mention that I am moving to a new place, and have no interest in dragging stuff with me...
The fourth display is actually the notebook display, so it's only 3 external monitors. Don't really get your point about being mobile... One of the benefits of trading for a living is that you can do it from any place in the world as long as you have a reliable internet connection. These days I travel with a custom case that holds 4 20-inch LCDs, and hook those puppies up to a quad video card that is in my ThinkPad Advanced Doc...