For a website such as you are describing, you may want to look into free weblog software such as moveabletype (http://www.moveabletype.org). It will allow for the customization of style sheets, weblog, archives, categories, and the easy insertion of images, video, files, links, and has tons of features that will allow you to have an organized and easily updatable website. With a sophisticated web interface, you will be able to update the website from anywhere.