I’ve been shopping for a new font lately, and I was pointed to ProFont (for Windows, for Macintosh, for Linux).
There’s an alternate there called ‘Sheldon’ which is just a minor variant.
All in all it is pretty good. It takes awhile to get used to it (seems small), but I’ve been doing it for 3 days now and it feels good. They recommend (and it may only be for) 9pt, so YMMV.