PS2 controller

[H4kInC]

Need one not wireless just normal looking at 10-25

 

[big_squirtle]

If you dont care if it is from Sony, go to Radio Shack. Ps2 Controllers $4.99

 

[PenguinMaster]

Check out a local EB to see if they have Clash Pads for $5 (probably will be marked higher), they are a pretty good set of 2 controllers.
Plus they have a nifty ability to mess each other up (using that is optional).