Here's my livingroom setup.  That's a 46" DLP set to give a notion of scale.  The bottom cabinet holds controllers and such.  The game systems on this TV are a 360, Gamecube, Dreamcast, and TurboDuo.  Everything else is connected to the bedroom TV.

The sub is in the fireplace 'cause well...well why not? :)

Darn, at work so no pictures...come to think of it no pictures anyway 'cause we're remodeling and in the midle of moving three rooms around but this is what it is:

Area 1: 46" Samsung DLP, xbox360, sony upscaling DVD, crappy kenwood DTS reciever, satellite DVR, Infinity TS-1100 speaker set, TurboDuo.

Area 2: 32" Toshiba cinema series (non-HD CRT), Sony DTS reciever, DVD player, TIVO, 5.0 speakers that are a mix of JBL on the fronts and some brand I can't remember on the back, and all the other game systems.  Currently that's a Dreamcast, snes, nes, jvc x-eye (that's a genesis/segacd combo unit) with a master system converter I modified to fit the differently shaped case, ps1, saturn, and gamecube.  I'm probably forgetting a system or two but that's the main ones in any case.  There's more in boxes but you only have so many inputs :)  The xbox drive was acting a bit wonky so it just retired to EBX for enough credit to walk home with a free copy of GRAW and a preorder on another game.

Area 3: gaming PCs...currently nothing amazing a 2Ghz P4/1GB ram/radeon9800Pro and a AMD 3700+/2GB dual-channel ram/dual NV6600GTs.

Right now area 1 is setup and the rest is in heaps waiting for the rooms they go in to be completed :)