I've said in the past I enjoy looking for cool and beautiful fonts, particularly of the monospaced variety. I tried using Monaco (a font recomended by some), and while the font is nice, I found it too tiresome for everyday use, and reverted back to trusty 15pt Consolas.
I recently found out Inconsolata, and it definitely shows potential. It's a little smaller at these sizes than Consolas, but it's a well balanced font, with all the usual programming characters well defined and easy to spot. I particularly like the braces and brackets as they are well positioned. The only significant downside I've seen so far is that the uppercase O is not too different from the 0 (zero).
I'll keep on using it for a while and see how it works out for extended use.