Invert Mouse Buttons

[jaceguay]

Hi, I use a Standart mouse and dont´t want to spend in a Mighty Mouse just for this feature, What i want is to invert the right mouse button with the middle mouse button. I´ve try to find a way and end up with editing the com.apple.symbolichotkeys.plist, but I coud not fin a way to do it after I open the file.

I need some help if someone can change this or show me how to change in some way.

Thanks