The Seattle Seahawks were not the only suitor Monday in trade talks for Minnesota Vikings receiver Percy Harvin. The NFC West-rival San Francisco 49ers were also involved, but the Seahawks were so much more aggressive that a bidding war never materialized.That was the word Monday night from people familiar with the negotiations. It's more footnote than headline from a national perspective, but around here, these are the details that frame the discussions for a season.