Since it's a Mac I don't think you can add anything. Unlike PCs, all of their hardware is proprietary, so you can't really add anything and all expansions must be done by Mac, not that I think they do anything. Even if you could add something, you would probably void your warranty by doing so. This is why I build my own PCs. Your best best is to just buy an external USB BluRay burner, but it's going to be very expensive. I don't think there's any way you can get HDMI on your MAC.