Quad Monitor???

Well if you mean to have the start bar all the way across the bottom two and make the rest basicly one big monitor then no. I have a 4 monitor system set like x where the top one is a TV so I can drag movies up and watch them xxx
Task bar will be on the main monitor and rest will be blank except background... There is a program I use to put a task bar on every screen also... Hope this helps if you still have ?'s be more spacific and I will try and help.

Thently

I Like the three accross the bottom so I have a center screen .. (Now i just need two more for 6 )

Matrox DualHead2Go
http://www.google.com/products?q=d [...] h+Products

get 2 digital or 2 analog editions, then use nVidia's control panel to span the image from the top 2 down to the bottom 2...

as for holding them all in place... Ergotron's got you covered (don't settle for less, these guys make GOOD products)
http://www.ergotron.com/Products/M [...] fault.aspx

Nobody said this would be cheap... but obviously, you're not looking for cheap, or you would've stuck with 1 monitor, a 7600GS, and Vista Basic... However, the advantage to using this setup as opposed to blackened144's suggestion is simple: using the DualHead2Go's allows you to maintain the performance of the 7900GTX, rather than dropping down to other cards... It's also all external...

The advantage of the Digital over the Analog is "Bezel Management" is that it makes the image line up across 3 screens, by forcing the image to 'render' in the space where the bezel is... the disadvantage is that it gives you vertical black bars on the outside left edge of the left monitor, and the outside right edge of the right monitor...

a pretty good review can be found here at [H]ardOCP
http://enthusiast.hardocp.com/arti [...] VzaWFzdA==

Good luck to you