Just for the prop' heads among us in case you haven't caught this snippet of news
Adobe have relz'd a new free font :
Read about it here http://blogs.adobe.com/typblography/2012/09/source-code-pro.html
Download at SourceForge here http://sourceforge.net/projects/sourcecodepro.adobe/
Monospace (fixed width for all characters), TTF or OTF
( For anyone who hasn't installed fonts before, after extract, right click any of the ttf files on windows and choose install
Now you can use it in Notepad++, or edit your http://www.bild.me/bild.php?file=6925185Untitled.png, custom fonts in your browser settings .. etc. )
Its a nicely designed font which de-confuses the problem characters O0o 1il| and a few others which can be problematic for programmers.