LockBrowser is a configurable Locked down Kiosk Web Browser. It has the ability to lock down various access to the host OS, plus to display a page as a screensaver, clear cookies, use blacklists or restrict to only certain domains etc. LockBrowser is free whilst in development.
It has many configurable options:
*Hide Toolbars, customise buttons and appearance
*Fullscreen Kiosk Mode
*Supress CTRL-ALT-DEL, Task Manager, StartBar
*Block certain sites or Restrict to certain sites
*Kill cookies on URL change etc,
*Inactivity timeout to HomePage or a screensaver page.
*Log Sites visited