I just had a Powermac G3 blue and white given to me and I have a few questions. It's 450Mhz with 192MB of RAM. I want to be able to do some graphic design work on the machine (photoshop, illustrator and quark), and I'm wondering if it's worthwhile to upgrade the RAM on such an old computer? It cost about $100USD just for 256MB of RAM, and I think I would at least need 2x256MB in able to run my programs smoothly. What OS would you recommend me running this machine at? Right now it's formatted with 8.6...I guess I should upgrade to 9.2 and don't even think of OS X right? Any help with this would be great. Thanks.