Interesting about Darcy, and probably widely known [but I didn’t know], the past 8 years of trade deadline eligibility (04-05 lockout)… he traded on the deadline day on 7 of those years (with 1 trade also happening the day prior to deadline in 2004, in addition to the trades on deadline in 2004 that interestingly enough included Brad Boyes in a 3-way deal from SJ to Bruins), and 1 of those years he only did one trade that was on the day before the deadline — that was last year.

2003-04: March 9th, 2004 deadline, they traded the day before:

March 8, 2004

To Buffalo Sabres Brad Brown 6th round pick in 2005

To Minnesota Wild 4th round pick in 2005

and then they traded that day:

March 9, 2004

To Buffalo Sabres Jeff Jillson

To San Jose Sharks Curtis Brown

To Boston Bruins Brad Boyes Andy Delmore

March 9, 2004

To Buffalo Sabres Mike Grier

To Washington Capitals Jakub Klepis

2005-06: March 9th, 2006 deadline, they traded that day:

2006-07: Feb 27th, 2007 deadline, they traded that day (last team to trade):

February 27, 2007	To Philadelphia Flyers Martin Biron	To Buffalo Sabres Second-round pick in 2007
February 27, 2007	To Columbus Blue Jackets Fifth-round pick in 2007	To Buffalo Sabres Ty Conklin
February 27, 2007	To Washington Capitals Jiri Novotny First-round pick in 2007	To Buffalo Sabres Dainius Zubrus Timo Helbling
February 27, 2007	To Nashville Predators Fourth-round pick in 2007	To Buffalo Sabres Mikko Lehtonen

From Wikipedia page…  http://en.wikipedia.org/wiki/2006%E2%80%9307_Buffalo_Sabres_season     “The Sabres were the last team to be involved in a trade in the 2006–07 season. On the day of the NHL trade deadline, though, they made four trades. Goaltender Martin Biron, who had been the longest-tenured Sabre, was sent to Philadelphia for Philadelphia’s second-round pick in the 2007 NHL Entry Draft. Buffalo’s fifth-round pick in that draft was sent to Columbus in exchange for another backup goalie, Ty Conklin. Jiri Novotny was sent along with Buffalo’s 2007 first-round pick to Washington in exchange for Dainius Zubrus and Timo Helbling. Finally, the Sabres sent their fourth-round pick in 2007 to Nashville for Mikko Lehtonen, a minor league defenseman.[12]”.   Sidenote: Vanek was a +47 on the season. (best in entire NHL). Unreal. He had Briere.

2007-08: Feb 26th, 2008 deadline, they traded that day: 

2008-09: March 4th, 2009 deadline, they traded that day:

March 4, 2009	To Buffalo Sabres Mikael Tellqvist	To Phoenix Coyotes Fourth-round pick in 2010
March 4, 2009	To Buffalo Sabres Dominic Moore	To Toronto Maple Leafs Second-round pick in 2009
March 4, 2009	To Buffalo Sabres Second-round pick in 2009	To Edmonton Oilers Ales Kotalik

2009-10: March 3rd, 2010 deadline, they traded that day:

March 3, 2010[7]	To Columbus Blue Jackets Nathan Paetsch 2nd round pick in 2010	To Buffalo Sabres Raffi Torres
March 3, 2010[8]	To Atlanta Thrashers Clarke MacArthur	To Buffalo Sabres 3rd round pick in 2010 4th round pick in 2010

2010-11: February 28, 2011 deadline, they traded one day before deadline:

February 27, 2011[20]

To St. Louis Blues 2nd-round pick in 2011

To Buffalo Sabres Brad Boyes