I currently own a Quicksilver G4, but when the next Mac Pro comes out I will be purchasing one and giving the G4 to my father who needs to upgrade from the G3 that he uses now. But, the G4 isn't as fast as it used to be. It's a 733Mhz single processor, 768MB of memory, a 40GB 4200RPM HDD, and a Geforce 2MX. While the G3 is still very zippy because it still runs OS9, the G4 does not fair as well with OSX. SO, I was wondering what upgrade would be the best to make it feel faster. I just added 512MB of memory to it, but it is still sluggish at times. I am happy with the memory at the moment, but what would give it more of a punch? A graphics card (Like the ATI 9800 PRO for $209) or a processor upgrade (A single 1.2Ghz with 2MB LVL3 Cache) for $200? Would a hard drive upgrade make a difference? For example putting in a SATA card with a new SATA drive @7200RPM? Those are relatively cheap, so I'll probably do that reguardless. Links to what I'm looking at are below. Video card: http://eshop.macsales.com/item/ATI Technologies/100435068/ Processor: http://eshop.macsales.com/item/Other World Computing/MEG42M1200/ Thanks for your input!