Which is the most valuable goal in FC Barcelona history?

That's easy, its Ronald Koeman's goal against Sampdoria in the 1992 European Cup Final. It as a goal that turned Barcelona from a club who was satisfied with just beating Real Madrid to one that demanded European glory every season: a href="http://www.youtube.com/watch?v=7Okb8L6ppcc&NR=1" rel="nofollow"http://www.youtube.com/watch?v=7Okb8L6pp…/a