Casino game creation and adaptation

We have some casino games, written in Flash and PHP, and we are looking for someone to create or adapt our existing ones to expand our games selection. We will provide all graphics, so you do not need to worry about that. Simply providing the Flash and PHP files will be enough. You can use our existing ones to simply adapt for new game logic if you need to. Please make your bid for ONE SINGLE GAME from scratch, so we can evaluate prices. It would also help if you could provide a price in the message box for an adaptation of a game (we will provide all details of changes). There will actually be many games to do, over a long period of time - from simple ones like Casino War and Red Dog, to Video Slots. The winning bidder will need to sign a Non-Disclosure Agreement before starting, and to treat this as a priority project as we don't want to be chasing around to get the work completed. We had a programmer until recently, so we have a fair idea of the work and time involved. We'd ideally like someone with some knowledge of casino game rules, but it's not essential if you are a talented programmer. The project needs to be started as soon as possible. If you have any examples of your work, please include details.