Well, I'm fond of my present rig =
Case: Antec P 180B slightly modded with 2x Noctua 120 mm. 1200 rpm exhaust fans. 5 years old but still going strong.
I'm much into silent computing.
Psu: Corsair HX 520W. Oldie but goodie.
Mobo: Gigabyte GA-970A-DS3P.
RAM: Corsair Vengence, low profile 1600 Mhz 8 GB.
Cpu: AMD FX 6300. CPU Cooler: CoolerMaster Hyper EVO 212.
Videocard: MSI, Radeon R9 270. OC 2 gb.
HDD's: Samsung SSD 120 Gb and Western Digital Blue. 1 Tb.
OS: Windows 7 Pro 64 bit.
A good and pretty cheap rig all in all.
Ok. If I only could afford it? I would have got an Intel I5 or I7 rig instead with a Radeon R9 280X + maybe an Antec P 280 case? And a beefier Corsair psu.
I mostly play a heavy modded Oblivon and Skyrim.
Othervise, I just surf the net and hang at some forums, watching some videos at You Tube now and then + photo editing.