USB mouse driver

I have a gaming device (mouse and custom controller) that was designed for either the PS3 or the PC. Where would I go to start developing a mac driver for this device? If a mouse device works with the PC, can I assume that it is possible to write a device driver for OSX for it, or are the systems too different?

I can write in C, C++, or Objective C, if this helps, but I've never done device driver level programming.