two C1060 on Dell T7400?

Has anyone connected 2 Tesla C1060 cards to a Dell T7400 workstation?

Was the 1000Watt power supply sufficient, or did you have to upgrade to a more powerful one?

How do you connect the workstation to a monitor?
Did you use a third card, and which one will be compatible with the two C1060s and capable of 2560x1600 resolution?

This is under 64-bit RHEL 5.2.

Thank you!