SERB control with PS/2 mouse

I noticed in the playground area someone found out that you can interface with a ps/2 mouse. On instructables i saw that you can control your SERB with a Wii nunchuck. So now it has me thinking,l if you can do it with a nunchuck can you do it with a mouse. Problem is I'm a newbie to Arduino and programming in general. So anyone got any thoughts maybe able to ;)post an example. Thanks for any help.h

What's a SERB and how is it interfaced to the Arduino?

http://www.instructables.com/id/How_to_Make_an_Arduino_Controlled_Servo_Robot_SER/

that is a SERB it uses 2 servos this is the wiimote controlled SERB
http://www.instructables.com/id/How_to_Control_Your_Robot_Using_a_Wii_Nunchuck_an/
it moves using both the accelerometers and joystick