I agree with Greek Chick. You shouldn't just quit. When perm positions open up they usually look within the freelance team to hire first. The economy is bad right now, and every business has been affected, MAC is no exception. We haven't had a lot of hours for freelance, but being a former freelancer myself, I can tell you to keep trying.
In the mean time look to do freelance in other projects that pay, or a second job.
Goodluck!