Writing to investors

Hello,
After doing a google search on letter writing I came across your forum. I read through your comments and thought this would be a great place to get the help I need.

I'm trying to start a business and currently looking for investors. I want to put together a letter to write to potential investors about myself and the business. The problem I'm having is that I dont know the best way to start the letter. I woud greatly appreciate anyadvice you guys can offer.

Thanks,
from A MAN WITH A PLAN