Not only that, being so adamant about using Arch Linux would make you look ignorant/partisan. Now don't get me wrong, I'm more likely that most to make a stink about not being able to use Linux on the job, but you can still get most of the important tools on a Windows box: Unix utilities (cygwin), nice tabbed terminal (Console2), GVim, Emacs, Perl, Python, Ruby, etc. One tool I lean on heavily is the Silver Searcher (granted, you could could install Perl/App::Ack) and I was able to even quickly find a Windows port of that just now: https://blog.kowalczyk.info/software/the-silver-searcher-for...
Given the availability of most of the good stuff on Windows, I don't think my workflow would change very much if I were forced onto a Windows box right now, apart from the occasional bummer about some bleeding edge software being unported or some library assuming Mac/Linux. Indeed, it was being forced to work on a Windows machine for a couple years that made me switch from TextMate to Vim (it made sense to become proficient with a single cross-platform editor).