To help it would be good to know what games you play regularly and also what kb+m headset you have
to that end i love my logitec g910 keyboard, g502 mouse and g533 headset it all works flawlessly. only accessories i see maybe needing is one of the dedicated mini function key controller i.e. like a nostromo n52 and or E-sports controller i have used them in FPS and MMO type games. also if you are into space or flight games a joystick and Hotas will be great also.