I might have done - but the extra resolution of the Air wins over the regular non retina Pro.. Some extra pixels is great, loads more might be overkill for my use!
Mostly web dev stuff. A Vagrant vm Ubuntu box running all day and Sublime Text. Then the usual Mail, Chrome, Spotify etc. Photoshop occasionally.
I'm 100% sure the Air will cope with my day to day and not have any lag etc. But since it's only an extra €100 to get the Pro I'm not adverse to paying the extra for those times without a monitor, I just don't want any downsides because of that!
You don't. On the 1st of every month, that account posts a Who's Hiring thread. You comment in that thread with the details of your vacancy and how to apply.