I just wondered what versions of EI most out there are designing for?
Whilst learning at lynda.com I noticed that IE6 comes up a lot. Do you worry about IE6 now days?
Depends on your visitor demographic. I have a bunch of corporate XP/IE8 traffic so I target IE8 and IE9
IE 6 is pretty much obsolete now. But as Ken said, it all depends on your target audience and what equipment they're likely to be using.
For a typical site audience I mainly build for IE8, 9 and current versions of FF, Opera, Safari, & Chrome.