My wireless lan HTPC with a Samsung 58" 1080p plasma, Dish HD receiver, OPPO Blu-Ray player, Yamaha AVR and Toshiba HD-DVD player.
I built the HTPC from scratch: Blu-Ray drive, 5.4 tbs of HDD space, 1080p output with all the high res audio codecs you get with Blu-Ray via HDMI, and a 15" LCD for extra output so I can rip Blus' without the plasma on. Klipsch speakers and an SVS subwoofer. Very loud and accurate.