Thin Client

In my spare room I have what I grandiously like to call a library. (By library I mean approx 112ft of bookshelf space, on 3 of the 4 walls). What does any library need? A computer! Internet access, ability to print, access files etc. I have a random vision of the future of having my eBooks managed “somehow” (plug the eBook reader in, download the book(s) I want…). Nothing high powered; possibly playing youtube videos would be the hardest thing this computer would need to do.