I'd recommend Consolas.<p><a href="http://en.wikipedia.org/wiki/Consolas" rel="nofollow">http://en.wikipedia.org/wiki/Consolas</a><p>OS X Install → <a href="http://www.wezm.net/2009/03/install-consolas-mac-osx/" rel="nofollow">http://www.wezm.net/2009/03/install-consolas-mac-osx/</a><p>With slightly more effort it can be installed on linux.