So I have a have maybe a few hundred books at home and I think it's time I put together a collection of what I have. I'd love a database of author / title / publication year / physical location that I could search through ideally.

Is there software that can help with this? I had a brief look at LibraryThing, but I think it costs money for the quantity of books I'm looking at. I briefly toyed with the concept of making my own app that could scan an ISBN to speed up the process (since most will have ISBNs). I wonder what the people of Tildes suggest? Has anyone here done something similar?

I finally have the space to finish a project I've been working on which is a study with 3 bookcases. So far, my idea is to have 1 with books that will always be there, such as classic reads, or even an encyclopedia maybe?, or other reference material. Basically, a permanent bookcase whether or not I've read the material. The other two will be rotated in and out of stuff that I'm reading, have read recently or on my backlog before swapping or donating.

Anyways, what's in your "must have" bookcase? Reference, fiction/non-fiction, Calvin & Hobbes even! (Although that's more of a coffee table piece)