So far I don't seem to have much but what I have is damn nice:
61" Samsung 1080p (only through vga, damn commies)
Yamaha 7.1 surround
Custom lighting via remote control
Tron Arcade machine converted to MAME Cabinet with Custom Controls
Comfy la-z-boy recliner
Xbox 360 TS-H943 w/ HD-DVD add-on
Xbox 1.6 w/Xecuter 2.6ce and 200Gb HDD
PS3 no mods yet except

Wii w/ controller LED mods, Serial cable adapter
HTPC: AMD 64x2 3800 1Gb Corsair XMS Pro 1.5Tb capacity w/ Vista x32 Ultimate in a Silverstone HTPC Case
Christmas tree (too damn lazy to take down since christmas)
In the bedroom I have:
42" Samsung 720p
Xbox 360 Hitachi-LG (don't know which one, I have yet to mod it)
Xbox 1.5 w/ Xecuter (I don't remember which chip, I haven't been inside of it in a while) 320Gb HDD
Sony 5.1 Surround
King size Tempur-Pedic Bed (for when I actually sleep)
In the Office I have:
26" Samsung LCD HDTV
Xbox 360 in unopened box (for "testing" purposes soon)
That is pretty much it, although selling your soul for these things might seem a wise idea, the devil, surely, will always win.
EDIT: I almost forgot in the office I also have a nice 12Mbps connection used for "testing" purposes among other things (hosting web site, spoofing certain Stores, online services, porn, etc.)