(For a guide to videoconferencing and Webcams, seelast week's column.) I tested the Skype-Logitech combination before, during, and after a recent trip to Toronto. (You must also use a dual-core Windows PC on either end of the video conversation to experience the high-quality video.) Best of all, if you're video chatting with another Skype user, the service is free. Through this partnership, Skype users who own the LogitechQuickCam Pro 9000(about $80 online),QuickCam Pro for Notebooks(also about $80), orQuickCam Orbit AF(about $90) are promised high-quality videoconferencing. Last fall VoIP service provider Skype teamed with Logitech, which sells a line of consumer Webcams, among other things. In fact, I'm now among the world's Webcam devotees-at least where videoconferencing is concerned. The Webcam has come a long way since then.