Customize right-click menu

Is there a way to customize the right click menu on a Mac magic mouse? I would like to add "select all" and "copy" without having to use keyboard shortcuts? If not, is there a 3rd-party software app that can accomplish this?

I am looking for a way to customize the contextual menu when I right click using the mouse to "select all" and "copy" in a Word document or a Web page.

I am running Mac OS 10.6.5 and using a Magic Mouse.