I'm Craig McDougall. Co-owner of Broken Physics Productions and lover of all things tech.
I agree in regards to musicians wanting things for cheap or free, but I wanted to add that from my experiences they also ask for a lot from you. I've done a few music videos, and every time I've done them, the client has presented me with an idea from a huge band, but has given me no budget to work with. Definitely be careful and make sure you know what you're getting into first!