Heat oven to 350°F. In small bowl, combine crushed crackers, butter and water; press firmly onto bottom of greased 9-inch springform pan. Bake 10 minutes. Cool. In large bowl, beat together SPAM®, Cheddar cheese, cream cheese, onion, horseradish, Worcestershire sauce, dry mustard and chili powder. Spread over crust. Cover. Refrigerate overnight. To serve, press nuts over top. Remove side of pan; place torte on serving tray. Cut circle about 2 inches from outer edge of torte. Cut entire torte into 16 wedges. Cut outer circle wedges in half. Serve with crackers.