1: click on the icon at the bottom of the AUtoCAD program screen.
2. get a mouse with more than 2-butons and really POWER UP your abilities.
3. Set up a shortcut key combo like CTRL+LETTER for both (in CUI command).
4. Reprogram F-key: read this oldie but goodie, second post http://forums.autodesk.com/t5/autocad-2004-2005-2006/cui-osnap-on-function-keys/m-p/1477497

***THE POST HAS BEEN EDITED: TIPS NOT RELATED TO AUTOCAD FOR MAC HAVE BEEN CROSSED OUT***