beside the fact that this is a Mac OS 9 forum ... the worst you can do with a PPC G4 is to use it for audio in OSX.

thanks for sharing your experience. but other people may have different goals / software & hardware compatibility concerns.
or they may find a different approach that you never thought to try.
lets let other people draw their own conclusions.

i personally think that the apps from around the time of Tiger are very functional + usefull.
much more so on an intel machine.. this is true.. but they are still functional on powerpc.
http://www.oldschooldaw.com/forums/index.php?topic=147.0

especially if you are a composer.. using external hardware synths&gear...
some vsts are good. but lets be honest. alot of them are shit.