Courtesy the Arizona Secretary of State's website and the Maricopa County Recorder's website -
Presidential Preference Election (aka - the primary) - February 5, 2008
Voter registration closes - January 7, 2008
Note: By Arizona law, voters must be registered in a party to vote in that party's presidential primary.
Early voting begins - January 10, 2008
Early voting requests end - January 25, 2008
Early ballots due - 7:00 p.m., February 5, 2008
Maricopa County early ballot request form here
State of Arizona voter registration here
Hope everyone had a happy and safe holiday!