I really need a way to run two displays at a resolution of 1366 x 768 on my Macbook Pro. Would it work if I bought one of those usb video cards and ran one of the monitors off that and the other off the Macbook Pro's DVI out? Would I be able to mirror the two display? I dont want to buy one of the matrox boxes that makes my Macbook Pro think the other two displays are just one big one? If you have a way to run the two displays another way that would be greatly appreciated. 
Not the exact usb video card but the basic principal:
http://sewelldirect.com/USB-to-DVI-External-Video-Card-High-Resolution.asp
Not the exact usb video card but the basic principal:
http://sewelldirect.com/USB-to-DVI-External-Video-Card-High-Resolution.asp