Hello, fellow South-Walian!
Been splashing out, have we?!
You may be waiting a while for the Shark (try forever).
PPC cards (not produced any more) are priced for what they are - collector's items. Depending on the graphical work you intend to do, they probably won't help much in that regard anyway. Look for a 68060 or even 68040-based cards.
Cheers