Thanks for answering everyone.
I live in Switzerland so the prices aren't quite the same, it's about a 60 CHF difference between the i5 and the 8320 and about 80 CHF difference between the 860k and 8320.
@KamiKatze, yes, I'm building a new computer, but I wasn't really certain with the CPU. But you're all saying the 8320 is better than the 860k, so I'll go with that Thanks again everyone