website template with admin page

this is what i would like to have done: I would like a template (not flash) that I can use for any kind of site. I can do the different images for each to plunk in as it suits the theme. if i could get a template that was super easy to modify, with the menu and the images and the pages I would be pretty much set. I would need some kind of admin panel that i could use to generate new pages. i could adjust the tags from there --for seo--and add the article,certain images. Each page could have images in the same spot but the images I could put in would be different ones. is something like this possible?