In looking at how certain underclassmen would fare in the 2009 NFL draft, Tony Pauline from CNNSI asserts that Lindley would be a probable second-round pick if he decided to come out. I doubt he'll leave, considering UK's defense should be strong again next year, but it's something to look forward to.
"Trevard Lindley/CB/Kentucky: The Wildcats corner has shown steady improvement the past two years. Lindley, who grades as a second-round pick, is uncertain as to whether or not he'll enter the draft."
Here's the entire article - http://sportsillustrated.cnn.com/2008/football/nfl/12/18/underclassmen/1.html