Wow, I posted on this thread yesterday, yet it is not here. Weird.
Anyhoo, that is the very garbage can I ended up using too. I wanted something that was short enough to fit on the door under our bed. This unit is of moderate quality, but it works just fine and cost just over $10 (can't remember the exact cost). I mounted it to the top rail of the door, and had to extended the slots in the plastic mounting part in order for it to drop low enough to clear the top of the opening. We really like getting the garbage out of the way, and the galley cupboards are free for pots and stuff now.
We just use a small white garbage bag, or a shopping bag in it.