Binary numbered background/overlay ...

I've seen in a number of graphics people have augmented them with an overlay of a series of 1's and 0's (Binary #'s). They slightly plure them but manage to keep the numbers still slightly visible.

I've been searching all over goolge and various sites and the closest tutorial I can find to doing this is scan lines but this blurs them far too much, is there a recommended font to use when doing this? Suggested technique, etc?

I'm not sure what you mean. Try setting the Opacity of the layer with the numbers to something lower than 100%. Or, get scanlines on a layer and tone down the opacity of the scan lines.

http://www.effectlab.com/index2.html

Check out the two tutorials - Wobbly text and cubic type.

It would seem the easiest way to do this would be to make a new document with a transparent background and make a text layer with "1"s and "0"s (I suggest Arial font or possibly Helvetica) make and array like this:

10
01

then select that area and go to Edit>Define Custom Pattern name your pattern. Then using the paint bucket tool set to pattern with the pattern you just made fill a new layer on your original document with the pattern. then set your fore ground color to the color you want the "1"s and "0"s to be and press ctrl+shift+backspace to fill the opaque pixels with the fore ground color. Blur the layer a little and lower the opacity to taste.

I hope this helps. If you have any questions don't hesitate to ask.

An example of what I'm looking for can be found here :

Dark Project Studios

The background of that page is simply a pattern repeated over and over. if you can make a small area you like then you can make it a pattern.