There are several good guides to this.
The most difficult part to remove is the interior door handle surround. You must know how and where it clips -- basically it clips to the top and bottom of the door handle pivot. Once you know where to press, it comes off easily. If you don't know, you'll break or mangle the piece.
You'll need "the usual tools" (#2 philips, 10mm wrench), plus a 10mm nut driver with a longer shaft or 6" extension to a 10mm socket. A flashlight and mirror help the first time. A door panel tool (forked plastic pry bar) is useful, but you can do without.
Oh, and a few Band-Aids for where the sheet metal cuts your wrists.