I was just looking at the prices of the upgrades. As I mentioned in a previous thread I bought a B&W G3 on eBay to use as a media center. My problem now, is that I can't decide what upgrade to go with. I'm not spending more than about $200; more than that would be silly. I'm torn between OWC's G4 500 or the PowerLogix G3 1GHz. I suppose it comes down to AltiVec, but I have no idea what apps I use take advantage of it. Anyone know a resource to find out?