The current theory would be that the iBook belongs to me, and the eMac belongs to my wife. Organizationally-speaking, in order to avoid such a problem, I would do what I currently do, which is to keep a copy on my computer (which would be the iBook now) and then upload backups to a webpage every night. I do this now so that if I'm in the library and I see something I want to get into my thesis right away, I can just go over to the comp center, download the Word file, add what I needed to add...and then upload it--this is because I don't have a laptop. With a laptop, perhaps I don't need to worry about this.
The eMac, since I would be thinking about the 160gb hard drive, would be used mainly for video, photo, and garage band/soundtrack jammin'. Whereas I would use the iBook almost exclusively for school-related stuff (such as the thesis), even when I'm at home...since I can always hook up my 19" if my eyes get tired of the tiny iBook screen.
So I think I have the school organiztion figured out. What might be difficult would be the video stuff, since I would like to be able to use the iBook as a Final Cut sketchpad, perhaps when I'm out on a shoot and I want to see how things look together (wow, I'd never actually thought about capturing video on site like that--because normally I'm using DV or Beta decks rather than a camcorder feeding into the computer...that could be really neat). Of course, I would never be using this as a final product, mainly because I trust the playback on a DV deck moreso than a DV cam--it just seems more solid.
I don't know...I really think this is gonna work. The question then becomes when to purchase what (I'd like to have the iBook ASAP, I can hold off a bit on the eMac), and how much to upgrade these guys (in terms of RAM and how much HD space to buy...). ALSO, I need to figure out what I'm going to need to really make garage band hum, though I doubt I'll make any purchases before just trying it out--definitely gonna get a USB keyboard though.
Kudoes to Mac! I really feel like I'm being empowered to create, whereas all the years that I used PCs I felt like I was just running behind everyone and didn't have the ability to do anything creative like edit audio and video! I'm really pumped!