The Apple Store offers its factory-refurbished Apple PowerMac G5/2GHz Dual Desktop, model no. M9590LL/A, for $1,599, With free shipping, that's $100 off our last mention, and the lowest price we've seen. Sales tax is added where applicable. It features a single dual-core 2GHz G5 PowerPC processor, 512MB RAM, 160GB Serial ATA hard drive, 16x dual layer SuperDrive, and NVIDIA GeForce 6600 LE 128MB video card. Of note, the factory-refurbished Apple PowerMac G5/2.5GHz Quad Desktop, model no. M9592LL/A, with two dual-core 2.5GHz G5 processors, is also available for $2,699 shipped free, a price cut of $100. A one-year Apple warranty applies to both systems. Items are removed from Apple's site when sold out.