My set up is as follows:
Ultrafast Fibre Internet - 100Mb down and 50Mb up.
Homemade WHS2011 Server (i7, 256GB SSD, 38TB storage) - I use StableBit DrivePool to duplicate files and currently have only 4TB left (so files, videos, pic's etc. equal 17TB). This provides hard wired and wifi access to all files through the house with a mixture of devices accessing. I run iTunes on the server and have no issues with this, contrary to some suggestions that this can't be done (not running it as a service).
HP PC (i7, 24GB Ram, 256GB SSD) - this is my work from home machine and ripping and encoding machine.
Sony VPCZ22TGX (i7 256GB SSD) - only use this for travel now or access downstairs if can't do something with iPad or iPhone. Have an ASUS AC wifi dongle attached for super fast streaming from the....
ASUS RT-AC66U WiFi Router - speed and strength of signal is awesome and can't wait for Apple to start releasing iPad's, iPhones and aTV's with AC wifi chips (although will only need for one of the aTV's as others are connected to Cat6 - weirdly the master bedroom didn't have a cable run to it; previous owners must have wanted an oasis of calm away from technology - weird or what 😕).
Panasonic VT50 55" Plasma.
Hooked up to the Panny is a Denon AVR-4520 and connected to that is:
B&W CM9's, CM Centre, CM5's and ASW10CM.
Oppo BDP-103 Multi-zone blu-ray player.
PS3 and XBox 360
Boxee Box
aTV (gen 3)
MySkyHD (New Zealand)
In the family room we have:
Sony KDL55W900A 55" LED.
aTV (3rd gen)
MySkyHD (New Zealand)
Master Bedroom:
Samsung UA32F5500 LED
Freeview
aTV (2nd Gen jailbroken)
I use UnoTelly to get around region blocking to use Netflix, Hulu, iPlayer, ABC, 4OD etc. I subscribe to MLB, which in NZ has no blackouts - go Red Sox - and the NFL Gamepass is free here in NZ - go Pats - and it is pretty good quality airplayed to the TV's. Would be awesome if Apple either acquire the rights to online NFL in 2015 or at least for us here in NZ allowed the NFL Gamepass app to go on the aTV.
I also have:
4 iPad's (1x iPad1, 2x iPad2 and 1x iPad3 - looking to get an iPad mini for the missus when they release the retina version).
2 iPhone 5's
iHome IW1 - quite useful for using outside where the integrated speaker system doesn't reach.
There's a bit of other stuff but that's it mostly. Will go down the projector route next time we renovate (remodel for those in the States).