Mouse buttons?!

Is there any way to swap out the mouse buttons for other buttons? I hate using the scroll wheel and would rather use mouse button 4 or 5. How can i change this?

You might be able to change it from the options within the game itself (not sure).

Failing that you can use AutoHotKey and re-map your extra mouse buttons as middle button, right click etc - it's pretty simple, if you look up some basic commands.