Just fishing for ideas here.
Do any of the major template presentation frameworks (such as Smarty, Django) have prebuilt login/security handling? I want to save time on the security handling because it will consume a lot of time to worry about that. I want to build a site from ground up but I dont really want to go so far as starting with a completed content management system like Joomla or Drupal... thats way overkill. I prefer Java, C#, or PHP and I want to start from as close to "scratch" as I can.