"Such as" may also mean "similar to", while "including" really includes.
Let us try to construct some examples where they have different meanings:
"I am looking for a mathematical structure such as the set of reals but where it is possible to divide by zero." (the set of reals is not included)
"He would marry any girl such as Emmy, but not including Emmy herself since she was his sister."
There may be situations in which they are really redundant, but you may use both for emphasis. Regarding such emphasis, take a look for instance at http://www.usingenglish.com/forum/as...orm-shape.html
Student or Learner