If we didn't already know those cats were mad about customizable controllers, we just got a reminder: the Mad Catz Major League Gaming Pro-Circuit Controllers. These professional-grade PS3 and Xbox 360 controllers allow competitive gamers to adjust the gamepad's weight and swap out key components -- such as exchanging the controller's analog stick for a D-pad. Want your PS3 controller to have a Xbox 360 layout? No problem. If the insane kitty's ambitious Onza competitor isn't your thing, check out the MLG Tournament Edition Fightstick, featuring the same Sanwa Denshi components used in Japanese arcade cabinets. It may not have its sibling's stick-swapping action, but its 13-foot controller cable, classic layout, and left-right stick toggle mode (for emulating the missing analog thumbstick) still aims to please. The Arcade Fightstick can be had now at the GameShark store to the tune of $160, but the Pro-Circuit gamepads aren't due out until closer to the end of the year. Hit the break for a pair of extra pictures and the standard PR.