you'll wanna just set it all up in your display properties and have your laptop display...just make sure the use this device as the primary monitor box is checked
the other monitors should show as 2 and 3
Since you are not looking for a gaming card, but a workstation card instead - I think this one is what you might be looking for: ATI FirePro V3750 Workstation Video Card - 256MB GDDR3, PCI-Express 2.0, Dual-Link DVI, Dual Display Port for about $164…