There's a good chance you've owned a Logitech webcam at some point in your life, and if all goes according to plan your company's executives might soon be buying them, too. Logitech has announced intent to acquire LifeSize Communications, makers of high-end, high-def video-conferencing systems that primarily find themselves installed at one end of long, richly stained tables, flanked by tall leather chairs and positioned such that the CEO can gesture vaguely toward the camera and proudly say how expensive it was without actually