There is a wealth of resources available to help you plan, execute, and report your Eagle Project correctly. Start with the BSA Advancement Resources page to get the following two documents:
More guidance for Eagle advancement can be found on the Alamo Area Council's Eagle Scout page. There is also a Alamo Area Council Eagle Review Board Training Guide, which shows what they will be looking for in a completed Eagle Scout Project.
We at Troop 911 have an Eagle Project Approval Committee (EPAC), which has provided a number of documents for Eagle Scout Candidates to use. You can download those documents on the "Eagle Scout" section of the Downloads page.
Finally, the National Eagle Scout Association also has a wealth of information for all scouts working on attaining Eagle. See their website for:
The History of the Eagle Scout Award
Scholarships Available for Eagle Scouts
Multimedia Resources and Guides
Other Eagle Scout Articles