I'll probably end up with the D14, As for the Case, i'm gonna give it a shot with stock setup, but in the long run, I might like to upgrade to maybe something better if i'm not happy with the temps.
yeah the D14 will serve you well. one of the best air coolers today. a 4GHz overclock is easy with that cooler. also the 600T is a good case. just replace the stock 120mm fan exhaust with Gentle Typhoons AP-13 or AP-14.