So I'm thinking about jumping into the HTPC arena and here's what I was thinking for the setup(updated PC will come later). I'm looking to watch HDTV as much as possible, but wiring the house is not an option.
HomeRun Prime Tuner
Asus RT-56U Wireless-N dualband router
HDTV #1 - 50" 1080p
ONKYO S3300 stereo
Powerline 4port adapter
Roku, HTPC, and HomeRun plugged into ASUS router. Powerline will plug into router(is this necessary?) Primary TV watching through HTPC connected to stereo via hdmi(from ATI4620 video card) and 3.5mm to rca audio.
HDTV #2 - 50" 1080p
X360 and HDTV plug into 4port Powerline Adapter. Use X360 for live and recorded TV.
Other computers in the house will connect to network via Wifi, but will not likely stream TV.
One other note. Can I use an additional powerline adapter to connect computer in bedroom(other side of house) and watch TV?
Does this configuration sound plausible or am I missing something? I'm trying to get away from the cable boxes and add dvr capabilities.