Justin,
I agree with the previous contributor, you need a business plan. The RestaurantOwner.com has a template for a
business plan I haven't used their plan but it looks like it will point you in the right direction.
The main value of the business plan is to force you to answer some tough questions before you get too deep into the process. The failing I see in the Restaurant Owners business plan is that it doesn't appear to touch on marketing. I highly recommend that you have a marketing section to your business plan.