I agree, some cushioning is vitally important. As I prefer to be barefooted and my floor has no carpet or padding whatsoever my heels started to hurt at the end of the very first day. On the next day I felt that pain from the very beginning, so being productive was out of the question. Contrary to the general consensus I got myself a really cheap gymnastics mat for less than 20EUR which is only 2cm thick, instead of an expensive special purpose mat. Within 2 days the pain was gone and standing/working for more than 10hrs a day was not a problem anymore. So get a mat or wear shoes if you plan on trying a standing desk configuration.

Am I the only one who thinks that nothing comes close to Fixedsys (Excelsior) for programming?

Sounds very Windows-y from the blurb (and good blurb it is too). If I had a Windows box I'd defo try it out. Especially for the range of glyphs it has, lots n lots. However seems Mac head and Linux dweebs need not apply unless they want to struggle a bit.

if you can point out another, I'd try it, but I found this: http://fixedsys.moviecorner.de/?p=download&l=1 and it's only in bold. Hard to imagine using it.

Actually I was talking about this one: http://www.fixedsysexcelsior.com/

If you call that bold, ok. I call it: easy to read and less strain on my eyes. Especially because there is no need for ClearType (et al), which I can't stand, as it always looks blurry to me.