Sunday, July 20, 2003 - SAN JOSE -- Peter Kerrigan encouraged friends to move to Silicon Valley throughout the 1980s and'90s, wooing them with tales of lucrative jobs in a burgeoning industry. But he lost his network engineering job at a major telecommunications company in August 2001 and remains unemployed. Now 43, the veteran programmer is urging his 18-year-old nephew to stay in suburban Chicago and is discouraging him from pursuing degrees in computer science or engineering. "I told him, 'Unless you're planning to do this as a path to technical sales, don't do it,' said Kerrigan, who lives in...