Cooks Illustrated has a great guide. They recommend the Lodge Cast Iron Skillet. This not expensive and compared with enameled pans they won't chip and get destroyed. Available at

•  Amazon  (make sure to click through JetBlue to get 3x miles and use the 5% off Amazon store card)
• Walmart (make sure to use the visa checkout discount and click through cashbackmonitor.com). It's an incredible deal right now  half the Amazon price and free shipping over $50