I own as processors G3 (white iBook), PIII (Dell Latitude), Athlon Xp (white product). In the pcworld my PIII looks old stuff because most pcs are now sold with a P4 and using P4instructions isn't a bottleneck anymore. I am aware that Apple is started to accept orders for the G5 and that Prescott and Athlon64 are comming. The only model that contains a G3 is the white iBook(nearly the same as 12 inch Powerbook except cpu) because the G3iMac is discontinued and replaced by G4 models.
(link removed because of major off-topicness by fryke.)
(link removed because of major off-topicness by fryke.)