http://www.youtube.com/watch?v=nsOyT75RRrM
Save 3 - 6 months of expenses I lean strongly towards 6 months.
Then it's about knowledge, here are some books I strongly recommend.
Get a contract and NDA
General Reading
Learn about Marketing
Learn about Pricing
Podcasts & Courses
That's a lot of resources so start with Get Clients Now and Book Yourself Solid. Then read The Price is Right.
Today go buy Quitter and read it this weekend.