Getting a business loan is often about selling yourself well. That's why you should go in eyes-wide-open, fully prepared, even with a professional presentation. Keep a few aces up your sleeve, just in case, and only bring them out if they're really needed.
You don't have to go through the Small Business Administration to get a business loan, though it's preferred by many lenders, since SBA loans are guaranteed. You can also work toward getting a loan on your own recognizance, especially if you have property available to secure it.