Still rocking 65nm tech here, an old HP microATX case thats been stripped of everything. Cooler Master 460w PSU with hacked up casing, aftermarket fan. Have an overclocked nvidia 240GT (GDDR5 version) with an Arctic Cooling unit. Gigabyte motherboard, 4gigs of DDR3, and a 32gig SSD.
Most of those parts are recent upgrades. I've been using an e2140 for a little over 2 years now. Started off at 1.6, sat at 2.1ghz with a pin-mod on the old HP board. Got it to 2.8 on my new board. Used an HD4350 for a year and a half overclocked, before switching to my GT240, made a world of difference.
I'm not in a hurry to upgrade to new technology. Before this system I was using a socket 478 celeron for 5-6 years with no complaints. I'll get pics up once I clean my case up a bit.