I picked up a few of these ATtiny85 ICs from Farnell (http://uk.farnell.com/atmel) recently, they are really cheap £1 each and are, as I found out, ridiculously easy to program and use. I think Farnell is Newark in the US so they probably have them too. You can program a lot of the Atmel chips this way and Farnell stock a variety, I went with the ATtiny85 because it look good for the price and it is pretty tiny bit still in a DIP style casing.
High Low Tech link - http://highlowtech.org/?p=1706
As always, comments, corrections and criticism (harsh as you like) is always welcome.
Arduino Tiny - https://code.google.com/p/arduino-tiny/
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If you want to get in contact Twitter is probably the best way @mrdavidjwatts
http://www.davidjwatts.com