Best desktop replacements / all-in-ones

You're either after crazy amounts of power, or simply need the screen real estate to get things done properly. Either way, you still need things to be a little more portable than a full sized desktop.

Whether it's an all-in-one like Apple's iMac, or a multimedia powerhouse that you can travel with, you're all about power, with the ability to switch rooms easily every now and then. Delve then, dear reader, into the gargantuans of this year ...