This was my second build, intended primarily for gaming. It is still in use as my primary gaming machine, but I'm looking to re-purpose it as a NAS device and use the Cooler Master Stryker sitting in the background as the basis for my new primary gaming rig. This was built few years ago and has had some minor updates (listed below).
GTX 660 replaced ATI 5770
M4 256 replaced WD Blue 300(? I think it was a 300) as the OS drive
Corsair 2000 replaced Plantronics 655(?)
Skull Candy Slyr (blue) used as backup gaming HS and for music
Naga replaced misc. MS mouse
Corsair M65 replaced Naga for FPS gaming (Naga in use for RPG/MMOs)
LG 27" replaced Westinghouse 19"
Tiny desk replaced large retail space desk as I was demoted to when my wife started wanting to use the dining to eat... (it was in the basement where I ran power and cat5, but as we're now working on finishing it, I'm upstairs).
I don't remember exactly what I paid for the parts originally. I think it's about right as I think I paid around $1200 originally and added a few items. But the CPU, MB, and SSD were obtained from Microcenter. RAM and GPU was Best Buy. Amazon or Newegg provided the Antec case and PSU.
Also, sorry, I took pics of my 3dmark scores as it was easier but they don't want to load - Firestrike score was 4546 the last time I ran it (http://www.3dmark.com/fs/1128740). The Windows 7 OS was a gift for Christmas from a buddy who works at MS, so for me it really was free. And the smaller monitor on the right is used as a second monitor when I work from home.
EDIT: Wow, ok, finding the articles from 2009 - I really don't remember paying the prices listed so I'll stick with what I have (i.e. i7-860 per Anandtech was $280-ish, but $190 sounds more correct).
EDIT2: On the advice from Spencer1012 below, I've removed the pricing from the older parts. I left in the pricing for the parts that were replaced in the last 6-12 months.