California Cannabis (Taxing Weeds)

I was driving in my car this afternoon and listening to the "Howie Carr Show" on radio station WRKO in Boston. Howie mentioned that California Governor Arnold Schwartzenegger is commissioning a study to look into the possibility of legalizing and taxing marijuana for recreational use in California as apparently 56% of Californians favor legalization and the tax revenue from taxing weed could be 1.3 billion dollars per year and help with the state's current budget deficit.

What say you? Is this a good idea or not?

What I wonder is how would you control people who want to "grow their own grass"? If these people were caught with marijuana plants would they just pay the required state tax? I would think that a lot of marijuana users would try to avoid paying the tax. Would there be age restrictions on usage? Could you file a claim for disability or state assistance if you didn't feel like working at a job anymore?

I wonder if this commission will have fruitful results or will their efforts just go up in smoke.