Supporting hardware

I have an ATMEGA168 chip sitting around because I upgraded my Duemilanove to a 328 chip. Now I am wondering how could I make uses of the old chip. My question is, it has the bootloader code installed so other than supplying it with voltage, what other supporting hardware would be required?

Thank you.

I guess I found the answer to my question. :)

http://www.arduino.cc/en/Main/Standalone