As I said, whatever performance differences there are between the 3570K and 3770K, is nothing that overclocking can't fix. :)
The main difference between the two is Cache and Hyper-Threading and even Hyper-Threading can *reduce* performance in some instances.
Save your money by going with the 3570K, overclock it a little, use the saved money and spend it on a better graphics card.
You will get better gaming performance than someone who went with a 3770K and a lesser GPU.
If you're doing lots of heavy encoding, I still wouldn't go for the 3770K, I would look into GPU Encoding, Intel QuickSync or go for the Core i7 3930K and be done with. (No point wasting the extra $400 on a Core i7 3960X/3970X for a couple megabytes of cache and a little clockspeed over the 3930K.)
--::{PC Gaming Master Race}::--
