Moving to Brooklyn, NY! How hard is it to find a rental?

My girlfriend and I are planning on moving to the williamsburg area in brooklyn. I have been looking at listings on the internet, and found a bunch of really nice places. My credit isnt so great, and my girlfriend doesnt have established credit as of yet. She models and does make a good living, and theres paperwork to prove it. I also have a steady job (close to 4 years), and pay stubs to prove that I am making twice the rent amount. With our combined income, the rent is definately not a problem for us. Most places I’ve seen state that good credit is a must, but if we
were willing to pay the first, last, security and a few months in advance would the whole good credit obstacle be able to be bypassed?