My son began deejaying over a year ago. He now performs at clubs and does contests. This is something he does on the side while in the military. He mentioned opn FB about wanting a couple of CDJs. Not knowing his preference or what will work with his set-up, I hope that the folks here can help guide me, so please forgive my ignorance in this area. Any help would be appreciated. He does techno, so I am not sure how much scratching he will do with the CDJs if any. I know he is using Traktor (but not sure if it is a mixer). I would like to surprise him with CDJs for xmas because he would not be expecting it. Price point, I don't want to spend an obscene amount of money on his first set, but want them to be solid, stable and provide him with what he needs. Also let me know if there is anything else that needs to be purchased with the CDJ's. Do I need to think about compaitability with the equipment he has now or would they be considered stand alone. What about software? He does a lot of mixing. I am including pics with hopes that will help in guiding me to the right equipment. I have looked at a lot of user reviews on various brands/versions and it is so confusing. Thanks in advance to everyone for their help.