That is what I use.

Additionally in my .bashrc I have:

  EMACS="/Applications/Emacs.app/Contents/MacOS/Emacs"
  EMACSPOS="-g 140x66+655+23 --fullheight"
  e() { ( $EMACS $EMACSPOS "$@" & ) }

I also have it in the dock, but sometimes environment variables are not set up properly.

For this case, I create a plist file ~/.MacOSX/environment.plist and can add stuff to it like this:

    add_plist PATH "$PATH"

where:

  add_plist () {
    /usr/libexec/PlistBuddy -c 'Delete :'"$1" ~/.MacOSX/environment.plist >/dev/null
    /usr/libexec/PlistBuddy -c 'Add :'"$1"' string "'"$2"'"' ~/.MacOSX/environment.plist >/dev/null
  }