I have a question regarding screen savings and cpu usage.  I found some I like and one in particular has my cpu usage at 50% while it is running.  I am running a new dell optiplex 755 dual core with 2gb ram, and dual monitors hooked up to a 256mb GeForce graphics card.  
My question is does it "hurt" to run this screen saver with cpu usage that high?  I have it set so my monitors turn off after one hour, but I don't know if that drops cpu usage or not.  Anyone have any thoughts?
Thanks.