Eventually, you will probably want a slicer, a meat grinder, a sausage stuffer, and a vac sealer.
You may want a large high quality cutting board, some good knives, and a sharpening set up.
On the lower end of the price spectrum, disposable foil pans, butcher paper, heavy duty foil, 2 gallon zip lock bags for marinating, heavy duty poultry shears, a brining bucket, or an apron.
As mentioned above, the list never ends. Welcome to the sickness there is no cure for.