Would you consider paying $1,600 for a gorgeous desktop PC that takes up hardly any space, doubles as a really cool stereo system and video player, and moves easily from room to room? Should that sound enticing, would you have the same positive response if all of this came bundled in a 22-pound notebook with no battery power? Sony hopes your answer will be yes as the company begins pitching the Sony VAIO W Series ($1,600 street) all-in-one desktop computer.