GROUP 1: Patients receive cisplatin IV over 2 hours on days 1, 8, 29, and 36; etoposide IV over 1 hour on days 1-5 and 29-33; and oral erlotinib once daily on days 1-49. Patients undergo concurrent radiotherapy 5 days a week for 7 weeks beginning on day 1. Patients receive consolidation therapy comprising docetaxel IV over 1 hour on days 50, 71, and 92. Some patients may also receive oral erlotinib once daily on days 50-112.