I Don't Consider Myself a Pixel Peeper

Let's scratch what I said in the subject. I am a pixel peeper from time to time but only when I happen to be using Photoshop to review pictures and check for clarity, and noise. Most of time this happens when I get a picture that is clearly heads and shoulders above in sharpness, contrast, color and details that make me want to go back to some of my other pictures to compare pixels.
I pretty much done this mostly when I review photographs taken with the Sigma DP Quattro series, typically in low ISO and high shutter speed, or on a tripod. (The other times have been when I've shot with my Zeiss 135mm f/2 lens.)
If you are pixel paper, either consider moving to really expensive equipment or get a full beyond powered Sigma Quattro series (or Merrill) class camera and l and get your technique down; spend a lot of time in Sigma's horrible Photo Pro, and pixel peep! I do from time to time, and it's fun.