I got a C in Organic Chem 1, and a BC in Organic Chem 2.
Frankly, I don't care about it. It is my lowest grade, but I'm just happy I passed! ...
I got into two programs, interviews for all of them, and waitlisted for a few. I only had about a 3.55 gpa as well. I doubt they care about it THAT much, but be prepared to talk about it in your interviews thats for sure!
Friends that I know who've completed the application process have said that for most programs O chem is not even required. Some people take it to offset poor grades in Chem 1 or Chem 2, but often the latter will suffice for the chemistry requirement. I would not worry about the C in o chem so much.