I spend a good chunk of the day looking at a terminal window or other fixed-width environment for coding. I get very crisp and readable text using Monaco 10-points with anti-aliasing turned off--it's the only font I have installed that seems to be displayed as a bit-mapped font (just for that one size). In fact in this font the 10-point characters without anti-aliasing are more readable than in the 11-, 12- and maybe even 13-point sizes, whether the larger ones are anti-aliased or not. Sometimes though when my eyes are tired and I'm just on the laptop screen, not hooked up to a display with bigger pixels, 10 points is a little on the small side and I wish I could get a similar non-anti-aliased crispness with some font at an optical size that is just a bit bigger. I tried a bunch of fonts listed in various "top ten fonts for programmers": Aurulent, Consolas, Deja Vu Sans Mono, Droid Sans Mono, Inconsolata, Magda Clean Mono, Menlo, Panic Sans, Ubuntu Mono... but I didn't find a single one that displayed crisply like Monaco 10-pt. Try it in a Terminal window or in Text Edit - zoom in and the difference is remarkable. Does anyone know of a source for modern monospaced fonts that include bit maps for particular sizes so that they may be displayed without anti-aliasing?