Droid Sans Mono is a great font for programming but the zero character lacks a dot or a slash to be perfect.
I've made two modified versions of the original font, one with a dotted zero and another with a slashed zero.
There are similar versions in Cosmix.org, but they has less line spacing than the original. Try these if you like a more condensed code.
Droid Sans Mono (Original)
Droid Sans Mono Dotted
Droid Sans Mono Slashed
