We recently purchased this little guy from monoprice.com for $10.15. The HDMI switch features 3 inputs and 1 output, and does not require a power source. It automatically switches inputs when a device is powered up or can be switched manually using a button on it. The switcher supports all current formats and supports HDCP pass-through. This unit is so small it can pretty much fit in the palm of your hand. It could easily be mounted on the back of a display for easy hiding if desired.
