For devices that are not PoE compatible TRENDnet offers the TPE-112GS. This takes power from a PoE switch and splits it back to two channels, power and Ethernet. It is a great product as it is capable of supporting up to 1Gb/s networking and power out to about 100 meters. This can help reduce the costs of needing to replace exiting cameras or devices. The TPE-112GS is going to cost you much less than a PoE camera.
The TPE-112GS is a very compact device; it has inputs for the PoE cable from the switch on one end and a built in Ethernet cable and power plug on the other.
A small switch lets you adjust the level of voltage you need for your connected device. A light on the top indicates power to the device.