Get out of my living room!
We have a 39" HDTV in the living room and we're perfectly happy with it. A 32" for a monitor would be great for me, I play games and stream video, anything larger would be too much for up close viewing. Plasmas give you the best picture but I've read they can still have image burn issues when used as computer monitors.
55" LED TV in the living room, with the desktop computer hooked up to it, wireless mouse and keyboard. Each spot on the couch is a reclining desk chair. I came up with this idea in 2008, and I've noticed a lot of people doing the same in recent years. Word.
The fusion of TV and computers continues apace. The wife watches the TV and I typically go into my office and play on my computers, I want to meld one of my computers into a pure entertainment setup.
Imagine a single Windows machine that plays:
CD's
DVD's
BluRay's
Nintendo
Super Nintendo
N64
GameCube
Wii
Sega Masters System
Sega Genesis
Sega CD
Sega Saturn
Sega Dreamcast
Playstation
Playstation 2
Playstation Portable
(soon PS3)
(soon PSVita)
XBOX
(soon XBOX 360)
And be able to boot into an Android OS that is dedicated to streaming over 4,000 different live, movie, news, sports, PPV, and sitcom channels for free (legally).
These are just a scratch of the surface with regards to what a desktop computer in the living room can do!