I'm trying to learn Qt4. I have written code in C, C#, Python, PHP, Java and JavaScript before, but not in C++. Is there a book on Qt4 that you can recommend me?
I've found some books I might like, but they're a little on the expensive side. I'm not ready to commit to Qt before I've played with it for a while, so I'd prefer to keep it under 30 bucks.
I will accept the answer that gets the most up votes.