Can I Run 2 Monitors off a Lappy if I turn off the Laptop Screen?

[Unarmed]

Macbook, two FPs. Possible to run both of them with the laptop LCD turned off and one FP as primary display the other as extended desktop? Gonna get a MB Pro with a 30 inch but may wait for an update first. I'd just keep the laptop closed all the time and use a wireless keyboard. I think I'm ok for USB ports as the Macbook has two and each FP has two as well but if thats an issue too pls lemme know [img]/images/graemlins/smile.gif[/img]

Thanks guys!

PS: I've seen the card that allows both dsplays plus the laptop LCD, I only need the two FPS.