Friday's the deadline for the last (Grand Prize) drawing of the San Francisco Dream House Raffle, which benefits Yerba Buena Center for the Arts. Buy a $150 ticket, and you could win a $2.4 million Dream House in the Sunset or $1.8 million in cash. Most people would be smart to take the cash, unless they can afford the huge taxes on the house. Or, if they already own a less dream-worthy house, they could sell it to pay the taxes, or something. Either way, your $150 benefits a great cause. The final, Grand Prize drawing takes place July 25.