what brand of hard drive works best for an Apple PowerMac G4?
All Power Mac G4 models can accommodate two internal hard drives using the dual drive bracket and cable that’s included. The hard drive you choose needs to be a 3.5″ IDE ATA hard drive. See this article for a step-by-step installation guide: http://www.xlr8yourmac.com/IDE/Add_2nd_drive/index.html Which brand you choose will probably depend on which model is on sale. I usually choose Seagate drives since they offer a 5-year warranty (versus 3 year and 1-year on other brands). See Other World Computings list of available drives for pricing (and other brands too): http://eshop.macsales.com/shop/hard-drives/3.5-IDE-ATA/ In terms of reliability, most modern hard drives are very reliable. Some people claim that certain brands are more reliable than others, but I think the warranty support is just as important.