I understand the paranoia, but one thing you learn is that ideas are like a**holes... sample NDA: www.score.org/downloads/NonDisclosureAgreement.pdf If you want a quick resource: http://www.venturehacks.com, where they go into angels, investors, types of funding, etc., in a readable format. Go to archives and start there.
I am interested as a foreign investor send me an email just about the crux of the idea not the details Since I am in Another country, there are no noncompete issues I guess