I use
this for contracts. It's covered everything I've needed so far for contracts with clients, NDAs, pre-work agreements etc making it pretty good value. Pick a situation and there is most likely a contract in the pack for it. Fill in the blanks (your name, their name etc) and you have a professional contract. The only contract it didn't cover for me was one I had to make with a programmer as a sub-contractor for a recent project. There's also some useful project planning, estimate, and proposal stuff available on there that could really be useful when you are starting out.