On 20 Sep, 2005, at 7:56, JWarren371 at aol.com wrote: An e-mail from OWC has me thinking about upgrading my G4/867 MHz Quicksilver. PowerLogix PowerForce57 Dual G4/1.2 GHz $525 PowerLogix PowerForce47 Dual G4/1.8 GHz $599 A 50% increase of processor speed for a cost increase of only approximately14%? Why does my brain say that this is a "no-brainer"? If you can afford it, go for the gusto and get the faster of the two. Or, you could simply save the entire amount toward a G5 and revel in your good fortune.