Topping off the New England Patriots amazing 2007 season, was Tom Brady surprising Peyton Manning's 49 touchdown passes in a single season. Only 7 QB's have thrown for over 40 TD's in a season, with Dan Marino doing it twice. Brady's mark of 50 TD passes is truly amazing. Brett Favre has never thrown over 40 TD's in a season, but he is a model of consistancy by tossing over 30 TD's 8 times, Peyton Manning has done it 5 times.

NFL All-Time Leaders	NFL Single Season Leaders
Total Passing Yards Leaders	Passing Yards Leaders
Touchdown Passes Leaders	Touchdown Passes Leaders
Rushing Yards Leaders	Rushing Yards Leaders
Receiving Yards Leaders	Rushing Touchdowns Leaders
Touchdowns (RB and WR) Leaders	Receiving Yards Leaders
	Receiving Touchdowns Leaders
2011 NFL Player Salaries

Single Season NFL Passing TD Leaders
Rk	Player	Team	TDs	Year
1	Tom Brady	New England Patriots	50	2007
2	Peyton Manning	Indianapolis Colts	49	2004
3	Dan Marino	Miami Dolphins	48	1984
4	Drew Brees	New Orleans Saints	46	2011
5	Aaron Rodgers	Green Bay Packers	45	2011
6	Dan Marino	Miami Dolphins	44	1986
T7	Matthew Stafford	Detroit Lions	41	2011
	Kurt Warner	St. Louis Rams	41	1999
T9	Daunte Culpepper	Minnesota Vikings	39	2004
	Brett Favre	Green Bay Packers	39	1996
	Tom Brady	New England Patriots	39	2011
12	Brett Favre	Green Bay Packers	38	1995
	Tony Romo	Dallas Cowboys	36	2007
	Kurt Warner	St. Louis Rams	36	2001
	Steve Beuerlein	Carolina Panthers	36	1999
	Steve Young	San Francisco 49ers	36	1998
	Y.A. Tittle	New York Giants	36	1963
	George Blanda	Houston Oilers	36	1961
T20	Steve Young	San Francisco 49ers	35	1994
	Brett Favre	Green Bay Packers	35	1997
T22	Drew Brees	New Orleans Saints	34	2009
	Drew Brees	New Orleans Saints	34	2008
	Philip Rivers	San Diego Chargers	34	2008
	Randall Cunningham	Minnesota Vikings	34	1998
	Daryle Lamonica	Oakland Raiders	34	1969
T27	Peyton Manning	Indianapolis Colts	33	2010
	Drew Brees	New Orleans Saints	33	2010
	Peyton Manning	Indianapolis Colts	33	2009
	Brett Favre	Minnsota Vikings	33	2009
	Peyton Manning	Indianapolis Colts	33	2000
	Daunte Culpepper	Minnesota Vikings	33	2000
	Vinny Testaverde	Baltimore Ravens	33	1996
	Warren Moon	Minnesota Vikings	33	1995
	Brett Favre	Green Bay Packers	33	1994
	Jim Kelly	Buffalo Bills	33	1991
	Warren Moon	Houston Oilers	33	1990
	Dan Fouts	San Diego Chargers	33	1981
	Y.A. Tittle	New York Giants	33	1962
T40	Carson Palmer	Cincinnati Bengals	32	2005
	Brett Favre	Green Bay Packers	32	2003
	Jeff Garcia	San Francisco 49ers	32	2001
	Brett Favre	Green Bay Packers	32	2001
	Scott Mitchell	Detroit Lions	32	1995
	Dave Krieg	Seattle Seahawks	32	1984
	Lynn Dickey	Green Bay Packers	32	1983
	Sonny Jurgensen	Philadephia Eagles	32	1961
	Johnny Unitas	Baltimore Colts	32	1959

* Current season
** Updated Jan 3rd, 2012

Sources:
pro-football-reference.com
databasefootball.com
wikipedia.org
espn.com