Hi! The Raspberry Pi 4 is a great choice for your retro gaming setup. It has plenty of power to run most classic arcade games, and its small form factor makes it a good fit for an arcade cabinet. You can use software like RetroPie or Lakka to set up your gaming environment. These operating systems provide a user-friendly interface for managing games, as well as support for popular controllers like the ones you already have. Good luck with your project!