Multiple Thumb Drives and Install Rights

Hi All – I’m having a bit of an issue with my current environment.

We are an XP-based shop and the machines i’m concerned with have just basic user privileges.

However an issue has arisen regarding thumb drives, particularly those brought in by guests who will be presenting. Is there anyway for us to be able to allow users to install their thumb drives as needed, without having to give more permissions to these common machines then necessary (and having to run back and forth everytime someone holds a meeting)?