Ma'am? Would you be interested in purchasing said tome for a mere five dollars?Late last month, we wrote about a Friends of the San Francisco Public Library book sale featuring all the tomes you could carry away for a buck apiece. It turns out that the library's nonprofit arm will be at it again this month, hosting a Brothers Karamazov-sized sale (compared to the Metamorphosis-sized event we attended in May). More than 150,000 books -- with none priced higher than five bucks -- will be on sale s