Two users, one AppleTV. Please help.

Question

I'm thinking about getting an AppleTV for THE device to play back our media. So this would mean our movies, music and maybe occasionally pictures. There are two users in my household: me and my wife. We have one computer, A MacBook Pro (although the wife might get a laptop of her own sometime in the future). I also have a Mac Mini that I have been planning to turn in to a server.
Now, both me and my wife have our own iTunes-libraries on the MBP. How could we make that content available to the AppleTV? There are few options:
a) We stream the content from the laptop. Easy solution, but I do not want this. I want to be able to access the content all the time, even if the laptop is sleeping. Also, I would like to move the iTunes-library off the laptop in order to save HD-space.
b) We sync the content from the laptop. Easy, but the problem is that only one user can sync. So if I synced my content to AppleTV, my wife could not sync her content, so we are back at option A, which is not suitable.
c) We combine the two libraries in to one, copy them to the server that runs iTunes, and we stream the content from there to the laptop and to the AppleTV (or we could sync it to the AppleTV as well). The library could be split in to playlists that would list each users songs for example, so my wifes Harry Belafonte-songs don't get mixed up with my Manowar-songs . Now, this sounds like the best solution. But how could I or my wife add content? The laptop would be used to buy music from iTunes, as well as ripping CD and DVD's, and that content needs to be added to the iTunes-library that is running on the server. How to do that?
d) We combine the iTunes-libraries in to one (with playlists separating the songs according to the user) and put it on a network-volume on the server. Now, this seems like a good solution as well, but... If my wife ever gets a computer of her own (instead of we using one shared computer), what would happen if she decided to access that content on her computer while I was accessing it on mine? Of course I could just wirelessly share the library with her computer, but then she couldn't add her purchased songs to the common library, and they therefore wouldn't be playable on the AppleTV.
I don't think my situation is that uncommon, so I would be interested in knowing how to solve it.

Answer 1

This actually seems like a viable solution. If my wife buys or rips some music, I don't have urgent need to listen to it, and if I do, I can always import the songs to my library. And I'm quite certain that my wife is not interested in my content, but if she is, I could always teach her how to import my content to her library.
One loose end that remains is that how we will get that various content to the AppleTV. Of course, I could manually sync the content to it. But if my wife buys content, how could she make it available to AppleTV? While streaming would work, I don't like the idea of AppleTV being dependant on the laptop in order to work properly. What would happen is that she buys content, I then add that content to my iTunes-library from where I then sync it to AppleTV. Or she streams her library to AppleTV, but she couldn't access that content if the laptop was sleeping.
I asked this same question in another Mac-forum and I received a suggestion where the server would stream the content. Adding purchased content to the server-iTunes would be handled by a Folder Action that would automatically import any added file to that folder to the iTunes-library. So if my wife bought a song, she would then copy that song to certain network-folder, where it would be automatically imported to the server-iTunes for streaming. And same thing would happen in my case. We could still have separate libraries for each user, for iPod-syncing and so forth. So it would basically be a three-way iTunes-setup, with three different iTunes's (mine, wifes and the server-iTunes) using same folder and files, but each having separate libraries. My wife's library would contain just her content, my library would contain just my content, and the server-iTunes would contain all content that would then be streamed to AppleTV.
Does any of this make any sense :)?