Advanced Docking Station, 3 monitors, and Linux

[creed]

I currently have a dual monitor setup with my T60p (laptop lcd + external monitor) and am using Xubuntu 7.10. Works fantasitc so far. But I'm interested in adding a third monitor (LCD + 2 external monitors). I've read the advanced docking station can do this but you need to add one or possibly two video cards to the dock. Does anyone here use this dock and have a 3 monitor setup with linux ? What card(s) work the best ?

Thanks!