This is my first computer build and I really enjoyed doing it. I started out with an EVGA GeForce 570 HD 2.5GB; however, i just recently upgraded to 2-Way SLI GeForce 660 Ti's. My next upgrade will most likely be the RAM. I plan on getting 2x8 GB of 2133 Mhz Corsair Vengeance. I also was able to overclock the CPU to 4.4 Ghz very easily and it still run nice and cool. This computer is used for everything that I do, but mostly gaming. It has run every single game I have played on it at max graphics settings at well over 60 FPS. Some examples of the frames I am getting is an average of about 300 FPS on max settings in League of Legends, and about 100-120 FPS on Battlefield 3 and Skyrim. Feel free to comment or ask questions.
Edit: I'll post more pictures soon, also this computer was originally built in 2011. The graphics cards were just upgraded this past Christmas (2013) and the keyboard, mouse, and headphones were all purchased over time after the build.
Edit 2: As of January 18, I have now upgraded and installed a new, modular power supply, a Samsung SSD and another WD Caviar Black 1 TB HDD. I also have a second Acer 23" monitor on the way. More pictures once i get the monitor in the mail!