if you're gonna be using vinyl, and you're doing dj trick stuff like beatmatching or scratching..
get technics! It's not like some equipment where the more expensive stuff has lots of bells and whistles that a beginner doesn't need.
technics (or other good direct drive turntables, but they really are the standard) are much easier to learn on, because they are more forgiving of what you do to them. The direct drive and stronger torque means you can mess about with them more before the sound goes wonky. You can focus on beatmatching/scratching/adjusting the record without worrying about whether you've pressed downward on the platter too hard.
there's always some dj going broke or some kid who spent their parents' money on them and never played them, who will be selling them on ebay or craigslist or something. (other direct drives might be as good -Vestax, say- but probably not as commonly available used simply because Technics is the industry standard)