Seat of the Pants Engineering: I Need More Power!

One of the challenges of bread boarding is finding the right voltage sources and ground pins to power and connect a variety of components.  Recently I was faced with the challenge of connecting a Gumstix Overo with 1.8V TTL signals to a VectorNav VN-100T IMU with 3.3V TTL signals via SPI.  I just happened to have 2 Sparkfun logic level converters on hand.

The gumstix overo is powered from a wall power supply.  The vn-100t needs 3.3v power and ground.  The two logic level converters each need a 3.3v power line and a 1.8v power line (high and low voltage) …
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