Congratulations on your win. First off, I am by no means an attorney so... You can probably find some sample contract templates via a Google search. Critical to

Congratulations on your win. First off, I am by no means an attorney so... You can probably find some sample contract templates via a Google search. Critical to your success though you will want to make sure that no matter what you cover at least the following: (1) timeline to completion; (2) payment terms as far as milestones and when payment is to be made and what happens if payment is not made on time or within a grace period; (3) the deliverables and timeframe for them; (4) what the client's responsibilities are (will they pay for any photos, licensing of plugins, what content they need to provide, and payment obligations; (5) I would add a clause that final copyright and/or files will not be turned over to the customer until final payment is received and cleared. Depending on the customer all of this can be something as simple as a Word document just spelling everything out that both sides agree to. If you plan to move full on with freelancing I would suggest hiring an attorney to draft up a simple contract that you can easily amend with the above details on a customer by customer basis. It may cost you a couple hundred dollars, but can be a lifesaver down the road should you run into that one customer (and the chances that will happen are pretty good if you freelance full-time).