What about a video splitter? Sort of like a router but it has up to 8 ports for muliple monitors. Is this only good for displaying the same image on all the monitors, or can you put different images on each monitor?
http://accessories.us.dell.com/sna/productdetail.aspx?c=us&l=en&s=dhs&cs=19&sku=A0542635
http://accessories.us.dell.com/sna/productdetail.aspx?c=us&l=en&s=dhs&cs=19&sku=A0542635
