Roenick and Amonte were both drafted out of the same school in 88, Roenick even made the jump from HS to CHI right away (for half the season).
Tkachuk was picked out of HS.
Others include: Marty Turco, Tom Poti, Mike Grier, Trent Klatt, Ian Moran, Eric Boguniecki, Paul Martin, Mike Dunham, John Pohl, Marty McInnis, Jim Fahey, Sean Hill, Eric Nickulas, Craig Johnson, Darby Hendrickson, Craig Conroy, Shawn Bates.
Some Yet To Be NHLers that were high draft picks in recent years: Matt Smaby, Mike Morris, Noah Welch, John Doherty, Brian Boyle, Ed Caron, Dan Spang, Ken Roche.
And not current players, but Tom Barrasso was one of the most touted HS kids ever to be drafted (and made the jump right away) in 1983, the same year Brian Lawton was the #1 overall pick out of Mt St. Charles HS.