Microsoft won't let you add the Windows Media Center Edition OS to existing Windows XP PCs, but for about $50 you can come tantalizingly close with a PC-based remote control and companion big-font on-screen interface. The best and most polished of these products we've yet seen is the SnapStream Firefly. It's a class act all the way, from its idiot-proof setup to the reasonable emulation of the interface used by Media Center PCs (often called a "10-foot interface," as that's the distance you're meant to view it from, sitting on your a couch or easy chair). There are half a dozen minor quirks, but none are showstoppers.