Adobe Lightroom

I just found out that Adobe has a Beta out for a program they are developing called Lightroom. It helps you alter and search through vast quantities of images easily (apparently). I haven't tried it out yet cause it's only for Mac at the moment, but the windows Beta release will be out soon. You can download it here, you just have to sign up for a Macromedia account. The beta license lasts till June too, so you can get a good feel for it.

Adobe Lightroom Beta

There's also a video to show you the functionality

Video Link