If you have the time to learn it, I'd recommend
Joomla!. There is a bit of a learning curve, but it, along with the many components and modules would certainly be able to do everything you need.
Drupal is another popular Content Management System. Some teams have used this with great results.
My suggestion is to not get too involved with either system. Keep it simple now and make it more sophisticated when you have more time.
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Roger Smith
Mentor - FRC Team 3357
COMETS - Creating Outstanding Minds, Embracing Technology & Science
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