Feeling a little bit like I won the Retro Computing Nerd Lottery or something, but found 3 PowerMac G4s from a local seller on Craigslist.
PowerMac G4 (Gigabit Ethernet)
Sonnet G4 1GHz
Sonnet Tempo ATA133 PCI card
Stealth Serial Port
SuperDrive upgrade, Max RAM, FW & USB PCI cards, etc...