I like this.  My list is pretty much like this, with some idiosyncratic additions, such as:

- Power strip for use in sessions

- Moleskin to prevent blisters

- Notebook and peripherals

- Luggage scale

- Reading material

- Decent laptop bag, 'cuz the jury's out on how robust the conference bag is

- One collar shirt, and a couple of t-shirts; the rest of your wardrobe you can quickly score at the conference.