Securing pages & sections

Hi All, This is more of a logic/opinion question... I want to get some fresh ideas. I am working on a system to manage quotes and orders. I have many users, all different levels, and want to secure pages based on active session, user level, and then go as far as putting access keys on a given page to only give it access to those people with the key can access the page. I'd like to know what others are doing from a logic stand point. I've gone as far as creating a couple tables: SecurityKeys - SecurityKeyID - KeyName - KeyLevel - IsActive SecurityKeysAssigned - AssignedID - EmployeeID - SecurityKeyID Would anyone suggest a different strategy to the database portion? Maybe additions or subtractions to the tables? Also, how would go about implementing them the key system? Again, I am looking for some opinions or experiences anyone has had doing this. Thanks! -- -Dan Joseph www.canishosting.com - Plans start @ $1.99/month. "Build a man a fire, and he will be warm for the rest of the day. Light a man on fire, and will be warm for the rest of his life."