There's only highway that leads straight from Southern California to Las Vegas, and on any given weekend thousands of gamblers determined to wager can wind up crawling along I-15 for over three hours on their way to The Strip. Tony Marnell,the developer who built the Bellagio, Mirage (MGM), and Wynn Las Vegas (WYNN) casinos, has a plan to get gamblers to the blackjack tables in 80 minutes. He wants to build the DesertXpress, a high-speed train that would run 190 miles from Victorville, Calif., a desert community 85 miles northeast of Los Angeles, to Vegas, and cost $75 round-trip. "People don't want to spend their time traveling to Las Vegas," says Marnell. "They want to spend time being in Las Vegas."