The second edition of my Internet Starter Kit for Macintosh is now available. It's significantly different from the first edition (a larger disk with an installer, and approximately twice as much actual text, although the appendices are smaller) and I'm still working on a change list. More later, but I wanted to mention it so people could stop asking me when it will be out. [ACE]
Copy Disk Image as Folder
When you open a .dmg file, a disk image is mounted. You are then generally supposed to copy the contents of that disk image to your hard drive (to your Desktop, your Applications folder, or wherever). But what if you want to copy the whole disk image, including all its contents, as a folder? Hold the Option key, and drag the "proxy icon" in the title bar of the disk image window to the destination in the Finder.