(hey my first post in the Boardroom, how cool)

Now how would you target this situation best to make sure it'll get you the best results:
Let's say I have a site that I want to go commercial with, and I want to use banners on it on various genres.

What would you do to get banners to your site that pay?
How to contact other companies or sites (email...?)?
What to tell them and what not...?

I have never done that but I am looking into getting this done so I would really appreciate your help on this one.

In case you get traffic on your site and you contact possible sponsors (through banner), what should the contract look like what MUST be in the contract etc.

Share your experience with me please,

thanks
iCEBERG