Advice on Camera Selection

[vitorjose]

Thanks in advance for any help

I am involved in a project which requires that I take potentially hundreds of pictures per day of various subjects. At the end of the day I have to review each picture and rename the image in a manner which allows others to identify the picture and place it in an appropriate location in a database.

I am looking for a camera that will allow me to identify the picture as I take it - usually a 4 digit number is sufficient to allow for easy identification later. Does this ability exist in any currently available camera? Or can anyone suggest an alternate easy process to achieve the end result.

Thanks again for your help

Victor