CSI: Miami is turning up the heat this February with another 90-minute installment, this one revolving around a massive fire in the Everglades. A source close to the show tells me that the big-budget episode also features a prison break by one of Miami's most infamous killers and the kidnapping of a major Scene-stealer. Meanwhile, with CSI: Miami's super-sized events garnering huge ratings — November's tidal wave-themed outing attracted 22 million viewers — might CBS consider expanding the show permanently? "Thank heavens, no," scoffs the insider. "These 90-minute episodes are a killer."