Library software

Hey all you librarian types out there (and you know who you are - ha!) Take your nose out of that book just for a moment and tell me if you've heard of any kind of software for *small* libraries with limited budgets - my antiquated Auto-Librarian (ick) is horrid and as I am going to be getting both a better computer (and internet, woot!) I am shopping around for something better, especially as I'm going to be setting up a small library for yet another church/school this year.

Danke! Mucho!