Please be sure to read the Admin Guidelines sticky just posted by Monkeybits. OfficerFriendly put it together, and it's full of very important guidance.
Should put in there commands that all players can use: sm_tracespray (and it's limitations), status, condump and how to record a demo.
Should also mention the use of the stats page for finding info when somebody bails before action can take place.
bump ... and remember that the commands of which you speak are availabe in the Admin FAQ sticky in the eG forum as well as by typing "sm_help" in the console. (You can also look at the SourceMod Wiki)