Show special content in posts only to logged in users?

Hi,
i know that there are Smarty {if} statements to check if user is logged in for template files, but are there also statements to use inside posts? i would like to create new posts with content that only logged in users should be able to see
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Answers
Have you checked out this?
http://vanillaforums.org/addon/premhide-plugin
grep is your friend.
thanks. didnt see that, but that fixed it