Bryce, who already wrote some great hardware articles for the CPC Wiki, released a new hardware device which allows you to connect a PS/2 mouse (or USB mouse with PS/2 adapter) to your CPC. The mouse will then behave like an AMX mouse so you can use it on all compatible software packages such as the The Advanced OCP Art Studio. You find the complete description of the device (inluding board an schematic files) in the PS2Mouse article in the CPC Wiki.