When MSU takes the field in 2009, they will wear their 6th helmet of the decade, probably more than anyone in the nation.
I researched the SEC and this is what I have found ...
Alabama has worn the same helmet since 1960.
Arkansas has worn the same helmet since 1967 - slight changes in face mask color aside.
Auburn has worn the same helmet since 1966 - slight changes in face mask, but have worn 2 helmets this decade counting a throwback game in '07.
Florida has worn the same helmet since 1979 - 2 this decade counting a throwback in '06
Georgia has worn the same helmet since 1964 - slight changes in face mask/stripes
Kentucky has worn the same helmet since 2001 - 3 this decade (started with a white helmet and had a throwback in '04)
LSU has worn the same helmet since 1977 - 2 this decade (wore a white helmet in '07 for Hurricane Katrina)
Ole Miss has worn the same helmet since 1995 - same design since '83 but darker blue began in '95
South Carolina has worn the same helmet since 2005, and previous worn the current helmet 2000-03, had a black helmet in ;04, so 2 helmets this decade
Tennessee has worn the same helmet since 1977
Vandy has worn its current helmet since '02, and has had 2 this decade.
So in recap
MSU is on its 6th helmet this decade
Vanderbilt, Kentucky and USC are on its 2nd main design
Florida, Auburn and LSU are also on their 2nd counting a throwback
Kentucky also wore a throwback so they have 3
I researched the SEC and this is what I have found ...
Alabama has worn the same helmet since 1960.
Arkansas has worn the same helmet since 1967 - slight changes in face mask color aside.
Auburn has worn the same helmet since 1966 - slight changes in face mask, but have worn 2 helmets this decade counting a throwback game in '07.
Florida has worn the same helmet since 1979 - 2 this decade counting a throwback in '06
Georgia has worn the same helmet since 1964 - slight changes in face mask/stripes
Kentucky has worn the same helmet since 2001 - 3 this decade (started with a white helmet and had a throwback in '04)
LSU has worn the same helmet since 1977 - 2 this decade (wore a white helmet in '07 for Hurricane Katrina)
Ole Miss has worn the same helmet since 1995 - same design since '83 but darker blue began in '95
South Carolina has worn the same helmet since 2005, and previous worn the current helmet 2000-03, had a black helmet in ;04, so 2 helmets this decade
Tennessee has worn the same helmet since 1977
Vandy has worn its current helmet since '02, and has had 2 this decade.
So in recap
MSU is on its 6th helmet this decade
Vanderbilt, Kentucky and USC are on its 2nd main design
Florida, Auburn and LSU are also on their 2nd counting a throwback
Kentucky also wore a throwback so they have 3