I´ve got the same setup.

7100/80 AM2, Thunder IV graphics, PDS video

but no g3 upgrade. I´m using protools 3.4 and soundedit. setup was simple. just putting the AM2 drivers into system folder, installing protools and you´re done... only problem is that protools does not load DAE automatically and crashes if you don´t load it manually before you load protools. (same with sound edit) The aM2 is a cool card. it sounds great.

have a jackhammer laying around but it doesn´t work at all...

EDIT: got all the software i needed from retromac