The Retro-tech Platinum table is a coffee table that hides a 22-inch monitor and a computer inside it. You can then hook the table up to your TV as a media center. It's a pretty neat idea, actually.
Unfortunately, it's priced at $4,850, which is insane. You could build this exact product for yourself for closer to $1,000. So while it's a cool idea to hide a computer in a coffee table, there's absolutely no reason for it to be this particular version of the idea. If you're really smitten, either build it yourself or pay someone to build it for you with custom parts.