It's not only about electing Mexico's next president for six years on July 1, 2012: In addition, there are gubernatorial elections in the following states:
* Jalisco (PAN)
* Morelos (PAN)
* Chiapas (PRD coalition)
* Tabasco (PRI)
* Yucatán (PRI)
And, of course, mayor of Mexico City - as close to a governor as one can get, until the Federal District gets its own constitution.
Here's a great rundown of the various hopefuls for the offices from the respective parties.