Suse PPC vs. OSX

I'd like to buy a new PW 550 and so I'm interested what are the reasons for using suse ppc or yellowdog-linux etc. Do you have old hardware that it's not fulfilling the huge hardware-needs of OSX or are there other reasons. What is your impression of working with OSX? Too slow? Thanks in advance! -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net