New mixer or new speakers?

Basically the question in the title. I currently have a Korg KM 202 mixer and a pair of pretty old hi-fi speakers. I also have a good quality pair of headphones. If I were to get a pair of speakers, which ones are a good buy? I've been looking at some of the rokit speakers

I bought Rokit 5's and I am very happy with them. I use them for Dj-ing not production. I had a hi fi set up for years with a set of Polk S6's and a Sony reciever. I am glad I switched.

Are you using CD's or are you using software with the CDJ's?