Question : What software is best for a "face finding" scan of images on my hard drive?

I read an article that says there are software programs available that will search all images on a hard drive from individual faces or other graphic components.  What software is available that can do this?  Retail or shareware is fine.

Thanks,

Phil Simmons

Answer : What software is best for a "face finding" scan of images on my hard drive?

Google Picasa all the way!