The Mac desktop works pretty much as Windows Explorer on its own. You can double-click on disk and folder icons to examine what's in them and move files around by dragging and dropping. If you drag and drop an icon to another folder on the same disk drive, it will move the file. If you drag it to another disk, it will copy the file. If you want to copy a file to another location on the same disk, you can hold down the Option key as you drag it. You can also duplicate a file by selecting it (click once) and choosing Duplicate under the File menu. The View menu allows you to change the way files are presented (as icons or lists ordered in different ways).

One thing that confuses many people is that to dismount a disk (floppy, zip, CD-ROM, etc.) you drag its icon to the trash can. If you do that with a file or folder, it's thrown away. If you do it with a disk, it just ejects it and removes its icon from the screen. Other than that it's pretty straightforward, IMO.

Play around with it for a while and you'll probably get comfortable with it fairly quickly. I've been using Macs for 15 years and love 'em. I'll be happy to address any questions you can come up with. Helps keep me on my toes trying to communicate things that have become second nature to me. Have fun!!

jeffp