While waiting for the programmer to arrive, I've been poking around the 'net looking at various AVR tutorials. The best one I've come across is at Sparkfun:
Beginning Embedded ElectronicsThere's a bunch of stuff at the beginning about building a power supply circuit using a 7805 voltage regulator, but you can save that effort if you have a good switching 5V wall wart power supply. Digilent has a good one (part number SWPS). They also have a nice cable for getting the output of the power supply to a pair of leads (part number COAXPOWER). Beware though: the ends of the leads are tinned with solder, so you don't want to stick them directly into a breadboard, lest bits of solder flake off and cause shorts. A terminal block solves this problem nicely.
When I get some blinkenlights working I'll post a picture.
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