I was looking for a template for an Non Disclosure Agreement this morning and came across the Exari website. Here is a demo you can use to help create a free NDA and other documents. I found it awesome, so thought I'd spread the word!
Even Exari say when they email you the document that it is not a substitute for legal advice - but it can suit a certain situation really well. And if you still wanted to run it by your laywer it would be a lot cheaper.