[LAU] Three Grafic-Cards with Studio64?

[CC-Band]

i want to use three (!) grafic-cards in my studio64 pc (studio64 rc2.1 with 
kernel 2.6.21). the first should be an agp the two others should be pci

these are my questions:

1) is it possible?

2) if yes can anyone send my his xorg.conf-file?

3) if yes: how can the first one show my normal desktop the second rosegarden 
and the third hydrogen?

4) which cards should i take?

5) is it better to load three different modules -> three different cards or 
can two be of the same type