Quarterback Joey Harrington was leaning toward agreeing to a contract with the Dolphins on Saturday, eliminating the major hurdle to Miami and Detroit working out a low-level trade for the former first-round pick. A source close to Harrington said the Lions quarterback preferred the Dolphins' two-year offer over a one-year deal from Cincinnati and interest from Denver. The terms of the Dolphins' deal were not available, although Harrington is expected to earn approximately $2 million in 2006 from either the Dolphins or Bengals. The Dolphins still have to work out a trade with Detroit, which was looking for at least a sixth-round pick for Harrington.