I can't believe you folk are still whining about the one button mouse. The MS two button scroll wheel Optical is always on the web for less than $10....Buy it and stop bitching. You don't even need drivers to use it.
Or, If you don't need to scroll get Unsanitiy's FruitMenu and you can set the mouse to open menus when you clic and pause. You will never have to you Control again.
roger
A Two-Button Scrollable Apple Mouse?