Need scheduled screen captures of pages

Is there a utility that does this?

[cgrantski]

At present I'm going to certain of my clients' web sites every morning and am capturing an image of the home page and certain internal pages. I'd like to have this done automatically by a program. Is there a program or browser plug-in that will visit each URL on my list and capture and save the screen?

I realize that an off-line browser utility like HTTrack can do this by scraping the source code and individual images, but I would vastly prefer a simple screen shot.

Any ideas on how I can do this?

[McElvoy]

Hewlett Packard used to have a program that did this as part of their printer program - it would browse to specific URLs and download a screen shot of what it found there plus screen shots of connecting pages if you wanted that. So I know it can be done. I could think of quite a lot of uses for something like this.

[cgrantski]

Found a solution - a macro program that has functions for going to a web page and so forth. Works great. I probably can't say the name of the program ...