Pop Photo position: If you plan to do any serious still image editing, you want a desktop. Senior Editor Debbie Grossman: "Power is cheaper in a desktop than it is in a laptop. The biggest difference is the RAM—the more you have, the faster and more pleasurable your image editing and processing will be. It's difficult to upgrade laptops, and without more than 4GB of RAM, you can't take advantage of 64-bit computing. The other big reason is the display. Yes, you could hook your laptop up to a monitor. But either way, you cannot rely on a laptop's monitor for color correction. Finally, hard-disk space: It's cheap enough to get a 2TB drive for your desktop, but that much storage in a laptop is going to cost you, big time.