Precision M40/NVIDIA Quadro2 Go/Win2k - Use 2 External Monitors While Docked?

I have the Precision M40 Workstation, C/PORT2 v3, NVIDIA Quadro2 Go, Win2k Pro.  I would like to be able to use two 21" external monitors  while docked (not 1 monitor and laptop screen).  I have done it with the LCD and another monitor but never with 2 external monitors while docked.  How would I go about getting this accomplished? Would I need to purchase something additional?  If so, what is best recommendation?  Any help would be GREATLY appreciated.

Thank you