To build a High Definition system, I first need a progressive scan monitor. A 1080i monitor is NOT high definition. 1080p IS high definition. I am waiting for a 70" SED TV. Then you need a home theater receiver with HDMI connection. I use a Denon. Your DVD player must be progressive scan with HDMI connection. In order to incorporate all of the real HD broadcasts, an HDCP chip is required in all of the devices. My satellite box is a Pansat FTA with HDMI and HDCP. I use two front speakers, a center channel speaker, two side channel speakers, two rear channel speakers, and two powered sub woofers. The two front channel sub woofers and the two powered sub woofers are 12" Pyle Drivers. The mid range are Vifa(Denmark) and the tweeters and super tweeters are Optimus. All are mounted in walnut wood cabinets ceiling high. The side channels each have a mid range firing one to the front in phase and one to the back out of phase. The center channel speaker has one tweeter and two midrange drivers. The box is wall mounted below the TV set. The TV monitor is wall mounted ceiling high. Currently a 62" Plasma.