My run last night was great! I was feeling good, so at 2 miles, I decided to push things a little and see what 3 miles felt like. And guess what? No knee pain whatsoever! I can't express how elated I was when I finished. I felt like my old running self again -- it was awesome!
My secret? Lots of foam rollering beforehand to get the IT band loose. Also, I have been super-duper good about stretching and icing after.