content management

Hi there I have asked this question before I am sure but I will ask again anyway.
I currently use dreamweaver mx and have just designed a site for myself and fellow photographers what I need is a way of my colleuges being able to upload thier work to thier own page on thw site whenever they choose, can any one advise me on how to do this also if it is beyond my technical ability which is not great could they quote me for the instalation of the necesary script.
many thanks in advance.
Karmaman