I have an old iBook G3 (500Mhz 576MB RAM 10GB HD) that isn't so useful to me now... but someone mentioned I might be able to make use of it and set it up as a file server... It has firewire, which I realized is a big plus.. none of my PCs have it... Well, down to business... I have a external eSATA/FireWire Terabyte HD and was planning on hooking it up to the iBook, and hooking that up to my airport extreme. I have heard of some people who have reservations about leaving a laptop on 24/7... but really, the laptop won't be doing much, the HD on the laptop will only be used for the OS (would it cause any problems if the laptop's HD isn't that reliable? it'll only be used to boot). The iBook will pretty much be just a router... to connect, and manage access to the external drive. That's essentially all it's gonna do. Does anyone have any experience in this area?