Also, you want to keep an eye on that 0% CC. When is it no longer 0%? You'll want to have a plan to deal with that, because if it goes up to 20% or whatever, it doesn't take long for the interest to rack up. And that's if they don't charge you the back-interest, which sometimes they do.
At a store I used to work at, we had a 6 months same as cash deal on the store's credit card. But if you had even $1 left when the 6 months was up, you got charged interest on the original purchase price for the whole 6 months at like 24%, so screwing that payoff up could cost a ton.