Hello!
Well, th BlizzardPPC drivers resides inside its ROM. Then, you should
not need to install anything on your harddrive.
You could just pick some PowerUP software on aminet or somewhere else.
However, you might need to update the ROM. As far as I remenber, some
old one will not be able to run recent soft.
About, the original Commodore PSU *should* be enough. But, the Escom
one is out for this job.
Bye