APC HT15 power conditioner is the best I have ever seen and it only goes for $300! This unit has features on it hard to find for under $800. It not only seperates audio/video analog/digital and has all of the EMI/RFI filters, it is an actual POWER CONDITIONER. It will boost the current when it's too low and will trim it when it's high. It will tell you how much of a load you have on your 15 Amp circut in %, shows the draw in Amps & %, has triggers and programable delays for outlets, allows you to adjust the brightness of the display and even turn it off, looks damn good and cost under $300!