Use key words that describe your business for your page name. This helps with SEO. After creating your page, you can post to it by selecting the Accounts menu on the top right of your Profile page, then select Manage Pages. When you click on the “Go To Page” button, your Fan Page will replace your Profile Page. Although you are still in your account, it can get confusing when going back and forth. (To get back to your Profile Page, select the Home link on the upper right of your account).
In order to keep your Profile Page open and open your Fan Page, I suggest you hold down the Control key when selecting your Fan Page so that it will come up in a separate tab, leaving you with 2 tabs to use rather than having to switch from one.
Profile pages can be set up to automatically send posts to your Twitter account. To accomplish this, open another tab in your browser and go to http://www.facebook.com/twitter.