. Your sound system won't look like a nerd's treehouse. I know, I'm a fool for audio. Nothing makes my heart go pitter-patter like the thought of spending $250,000 on a new two-channel audio system. But even I have to admit most stereos look like the wood-paneled version of the obelisk from 2001: A Space Odyssey: big, blunt and scary. That will change in 2007. In-wall audio, which can be hidden inside the walls and ceilings of your home, is going to get downright fabulous this year. Led by a great little speaker from Joseph Audio called The Insider, there is a wave of great-sounding in-wall audio equipment heading to the market. Among noteworthy units are the RCC 600 in-wall subwoofer ($2,000) from Artison and the Directed SoundField ceiling-mount loudspeakers ($490) from Niles Audio, which opens even the smallest room to quality sound. How cool would it be to have hi-fi in your closet? http://www.josephaudio.com/ http://www.artisonusa.com/ http://www.nilesaudio.com/