Today Calculated Column problem is SharePoint?

 hi,

 I would like to be able to use today's date in a calculated column in a SharePoint list to, for example, determine whether a task is overdue. There is a well-documented trick that involves creating a dummy column named "Today," using it in a formula, and then deleting it, thereby "tricking" SharePoint into using the Today function.

The problem is that this method does not work reliably -- the calculation is not dynamic; it is only made when the item is saved, and therefore the Today "column" effectively becomes the Modified Date. (This is probably why SharePoint won't let you use the Today function in a straight-forward way.)

Has anyone found a solution that works? I know I can use javascript to get the actual date on the client side and display colors, flags, whatever, but I am looking for a "server side" solution.