CMS needed for Template/Image Store

CMS needed for newly designed website. Website already created in php, HTML and MySQL database already designed with a simple user login system. **This website is not yet live. We plan to launch summer of 2012** Our website is already functional but it's time to implement a CMS. Paypal and Google Checkout already implemented, but we can carry this over to CMS. Currently we are using Git and GitHub. Our website is a very common concept you are already familiar with. About our website: - User signs up and buys credits, those credits go towards downloading template files on the website. Similar to [login to view URL] but not as complex. - User can currently check their downloads in user account area. - User can view purchase history and print invoices - User has their own lightbox - Much more. All logic concepts of the webite are completed, we just need someone one to help us build a management system for it. Our CMS should include - Preferably Wordpress CMS. - Admin user level. - File Manager Level. - Browse/Edit Users. - Browse/Edit files and content. - Browse/Edit Text Pages on site. - Front-end content search system - Login system - Admin File uploading system for website content - Front end Search with algorithm. - Possibly more. This website is to remain confidential until launch. Please message me if you have any questions or to see a better view of our website. We may also plan a Skype conversation for more details so you can give an accurate quotation and assessment of the project. Samples of work is a plus. Thanks Mark