Max756 dc-dc step-up power supply
You can see some of the pictures here:
MAX756 DC-DC Step UP
I've built this for one of the LED projects I'm working on. Very good refresher on reading schematics and applying them to the real world. The power supply will provide 3.3V or 5V out with a minimum of 0.7V in. (Requires 1.1V to start.)
More info on the IC here:
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/1167
[Update: 2006/05/15]
Made the MAKE Blog today.