Hi all, and thanks in advance for helping me figure this thing out. I just closed a business and switched career paths (a happy thing), which leaves a lot of usable hardware in my hands. Ideally, I'd like to set it all up as a wireless network that would (at least in theory) provide loads of backup storage. Knowing that I don't want to invest in any new hardware/software at this time, here's what I'd like to do...now please, tell me if it's possible/functional: What I use in my home office and around the house: PowerBook G4 MBP At the center of my wireless network: An older G4 Tower (no monitor; for storage only) Airport Extreme Cable modem Two external hard drives I already own - firewire One external hard drive I already own - USB Is it possible to add these three external HDs to the network by connecting them to the ports on the G4 tower? Will they be visible/usable from the other computers in the house? And...if the three external hard drives can be accessible via the ports on the G4 tower, will Time Machine work if I use the largest of the three as its target? Forgive me if this is newbie kind of stuff. For someone who's been using Macs for over 25 years, I'm still tripping over my own toes on some of the network issues. THANKS, OH GREAT ONES!