All "packages" whether for DJs, guitarists, drummers, bassists, etc; they're all crap. They're designed to be marketed to the rich parents of kids who go through a million different phases of what they're into. Little Johnny saw a DJ Tiesto set, and now he wants some turntables (Last year he saw The Arctic Monkeys and wanted to play guitar). So Mommy goes down to Guitar Center with the $3,000 or so she set aside for Johnny's Christmas presents (or whatever ridiculous amount of money rich people spend on their kids at Christmas), and tells the employee she wants to buy some "record players" for her son. But, of course purchasing musical instruments is like a car, you need to be heavily informed about the product you want. So the employee might ask a few simple questions: "is he a DJ? Club or scratch? Does he want to produce? etc." Oh geez, mom thinks, she has *no* idea what she's into now. It seems like Johnny won't have those turntables because mommy doesn't want to buy the wrong stuff, or worse yet, not buy enough stuff to actually use the turntables ("batteries not included syndrome"). Oh wait, some caring, thoughtful, "mom-watching-out-for", "couldn't-possibly-be-just-trying-to-gouge-unsuspecting-parents" company has bundled everything into one simple package! And what's even better(!): it's all cheaply made, so it won't cost a lot, which will really feel good to mommy and daddy when those turntables are collecting dust in the garage next that "Squier Starter Pack" guitar-amp combo they bought for Johnny last Christmas.
Seriously, if you want to scratch, buy one decent Turntable (1200 or better, or the Vestax mentioned before), and use the leftover money to buy whatever mixer you can. Scratch along to beats from a boombox or something until you can buy another good turntable. I started out with one Technics, and my mom's home stereo playing through the other channel on my "WorstMixerEver Brand" mixer. (Before that I was scratching on my mom's home stereo, and using my left hand to manipulate a *GUITAR VOLUME PEDAL* to cut in and out!) Honestly when you're starting out, you can easily get by with a terrible mixer, most of the features of high end mixers won't make a difference if you've never had to deal with a smooth slope fader with no cut option. Those fancy mixers are more likely to make you lazy and less likely to really break through barriers when they arise down the road. You'll need to use a lot of lateral thinking in order to be a good DJ.
EDIT: The reason I say you should spend the largest chunk of money on a single turntable is because the table is the most essential piece of equipment you need to have operating properly when you're starting out. The first thing you learn is how to hold the record, without affecting the spin of the platter, and then how to release the record exactly at normal speed. With bad turntables, learning these most basic techniques is quite simply, IMPOSSIBLE. The platters just don't have enough torque. It would be like trying to learn to ride a bike by riding a unicycle, and then just trying to double what it is you do on the unicycle when you're riding the bike. Or trying to learn to race Nascar cars by practicing with a Saturn; you might pull something clever off, but when you get in that stock car you're going to have to learn everything all over again.
