The Vikings are gauging quarterback Daunte Culpepper's trade value around the NFL, a person with knowledge of the situation said Wednesday -- confirming a decision triggered when Culpepper demanded that his 2006 compensation be more than doubled. A well-connected website, reported the Vikings are seeking a second-round draft pick for Culpepper, but that asking price could not be confirmed. A trade for so little compensation would conclude a stunning fall for Culpepper, 29, who put up MVP-caliber numbers as recently as 2004. Baltimore, Miami, Oakland and the New York Jets are among those teams who are expected to pursue quarterbacks this offseason. The Baltimore Sun reported the Ravens might be interested in placing their franchise tag on running back Jamal Lewis and then trading him for Culpepper.