Whoa, haven't visited here in QUITE a while... but I can NEVER pass up an opportunity to help out a fellow Mac user!
😀
Folding@home:
Folding@Home for OS X
distributed.net (dnet):
dnet download for OS X (PPC) -- RC5, OGR, or both, but G4s ROCK at RC5!
xdnetc (dnet GUI):
Download Xdnetc (GUI frontend for dnet for OS X) -- click the Download link at top of page
These, as well as SETI, are optimized heavily for the G4 Altivec core. I run dnet (in RC5 only mode) 24/7 in a terminal window, but the xdnetc GUI client is nice. I personally haven't tried Folding@home on OS X, so I don't know how the performance is compared to a PC, but RC5 crunching is definitely fast: my dual processor G4/450 is averaging 7.25 Megakeys/sec compared to my Athlon 1000/266 on a DDR board running currently at 3.6 Megakeys/sec!!!
I guess it depends on how you want to help TeamAnandtech (I'm assuming, of course, that you've joined?). If you wish to make the most of your hardware, run dnet in RC5-only mode (comment out the OGR in the configurations options by typing (in a Terminal window):
/yourpathinsertedhere/dnetc --config
Then in the configuration options, enter 2, then 9. It should be changed to read "DES,CSC,OGR=0,RC5".
I say to disable OGR not because I don't personally like it, but the code doesn't take any advantage of the G4 processor, so OGR numbers are about even with PCs for performance.
If you're not comfortable with the command line, get the GUI frontend. If you need help with the command line, I suggest visiting my favorite OS X site,
www.macosxhints.com
Enjoy!
Dan