Earlier this week CNET News.com had an interview with California Assembly member Lloyd Levine, who has proposed legislation that would ban the sale in California of incandescent lightbulbs for use in standard household lamps by 2012. The bill is AB 722 (PDF) and there is additional information on Assemblymember Levine's website.
An increasingly popular alternative to incandescent lightbulbs are compact fluorescent lightbulbs (CFLs). You can learn more about CFLs in this article from the EnergyStar.gov website.