I went and did my early voting today. On the electronic voting machines used here in Travis County, you use a jog dial to pick choices and an "enter" button to go with the selected item. For Sadun's race, there was a "write-in" choice, and then you had to go through another screen, entering his name one character at a time. This was a little frustrating and time consuming, but it made me think of a new tactic: Sadun should sent out mailings to all of the video game players in the district, encouraging them to write-in his name, because it's like entering your own name in a high score list. So, if you want to combine the thrill of getting the top score on Donkey Kong with the importance of voting, go with Lorenzo this election day!
For Sadun's own FAQ entry on how to vote for him, see http://www.writeinsadun.org/writein.shtml.