Facebook for Businesses

I am new to using social media and Facebook for my clients businesses and i want to offer it as an option. Noob question but how do you go about creating a Facebook page for a business, will it be a different account for each one and is it easy to set up and for it to look professional?
Any guides out there you would recommend?
Thanks in advance.

Go here to create a page - http://www.facebook.com/pages/create.php

You only need 1 account to manage all of your pages.

Thanks.
So i can log in using my own facebook ID and having different business pages wont clash?

That's right. After you log in, you will be able to see all the pages that you've created (or are an Administrator of).