1In small bowl, mix brown sugar, chile pepper powder, cinnamon and cumin; set aside.
2In 4-quart Dutch oven, cook beef, bell pepper, onion and garlic in oil over medium heat 8 to 10 minutes, stirring frequently, until beef is thoroughly cooked and vegetables are crisp-tender; drain. Add spice mixture; stir until blended.
3Stir in tomatoes, beans, 1 cup of the beer, the coffee and chocolate. Heat to boiling; reduce heat. Simmer 15 to 30 minutes until chili is desired thickness. Add some or all of the remaining 1/2 cup beer, if necessary. Check seasoning and heat level; adjust to taste.
4Serve chili with corn chips, cheese, sour cream and limes.