Can professional videogame leagues, supported by tens of millions of dollars and television partnerships, become as popular as the N.F.L.? With tens of millions of dollars in backing, the Championship Gaming Series is the splashiest and best-funded of the many professional videogame leagues that have emerged in recent years.C.G.S. will fork out $5 million in salaries and prizes in its inaugural season, five times more than any of the three other gaming leagues that preceded C.G.S. The league staged the first gaming draft in history this week at the Playboy Mansion in Los Angeles (surprisingly, the top pick was a female gamer), it is the first videogame league to sign all of its cyberathletes to contracts, and its across-the-board $30,000 base salary is more than what 34 percent of the players in Major League Soccer made in 2006.