Create File Maker Database

Docmine is a small company for documentary films and videobooks-production: [login to view URL] [login to view URL] We need a simple adress database to manage our client informations as a first step. Secondly we would like to add additional features like an "invoice-tool" or a database to manage the filmfootage that we produced throughout the years. I've seen that there any many "templates" already available on filemaker 12, which would probably already cover our needs, if adjusted for us. But instead of spending a lot of time trying to find out myself, I thought it might be more efficient to hire a pro. Who can do that and with what costs should I calculate? For more Information please contact me!