What kinda screensaver is good for TFTs and CPU?

I read somewhere that for TFTs screensavers that turn your screen black aren't the best thing (they don't save energy, they use it even more). - Don't ask me for any proofs.
So, which kind of screensaver saves most energy and uses my iMac TFT the least?
Thanks a lot
Peter

Peter,
The best kind of screensaver for TFT's is display sleep.
Screen Savers: Using With Liquid Crystal Displays"Putting the computer to sleep or shutting it down when it won't be used for extended periods is preferred to a screen saver. The Energy Saver control panel has a setting for display sleep that is applicable to both PowerBook and stand-alone flat panel displays such as the Apple Studio Display and Apple Cinema Display.";~)

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