Some really great setups in here, I would love to have a dedicated home theatre room, but our house is a little on the cozy side (not complaining mind you).
Here is the living room setup:
Samsung Series 6 40" 1080p LCD panel
Onkyo TX-SR706 Receiver
JBL LX series fronts (bi-amped), center and rears
Sony Active 12" Sub
HTPC running XBMC (Core i3 2120, 4GB, 32G SSD, GT430)
AEBS - wired to the GigE LAN
Apple TV2 - since been wired to the AEBS
Cable Box
Samsung BD-Player
Black Wii
LHS contains the HTPC, BD player, Cable TV box.
RHS contains the AMP, AppleTV2 (NHL Gamecenter only), IR receiver for HTPC.
And showing just how small my little living room really is.
Family room is just simply for our Son so he can watch his TV shows or Movies when we want to watch something else.
Hitachi 27" 720p LCD panel integrated speakers
HTPC running XBMC (Core i3 530, 4GB RAM, 80GB SATAI) - wired to GigE LAN
Toshiba DVD player
All of our media, music, movies and TV shows are ripped and stored on a NAS (FreeNAS 8) that sits in the garage and is connected to the GigE LAN. It has two ZFS pools, one raidz1 of 6 x 2TB drives (media) and the other a mirror of 2 x 1.5TB drives (data).