Those 3D software boxes and ebook covers are everywhere and with good reason. They really help people envision your digital object as being more "real". What is
unreal is the money they are asking for the services to make them as well as the software dedicated to the task. If you've got Photoshop and a few minutes, you're set and I whipped up a screencast showing just how easy it is.
Sample Software Box - Web 3.0, with more hype.
Watch the video: Screencast: Ebook Covers and Software Boxes with Photoshop on Google Video