If you're serious about getting into mixing vinyl this is what you need....
As far as turntables you always want to go with "direct drive." if you want to do a lot of scratching get staight arm decks, if you want to focus on mixing get curved arm decks.
Technics have been the standard since the 70's. I have a pair of Stanton T120c's (I like them more than the technics...more torque, on the fly adjustable start/break time, reverse button, +/- 8, 25,50 pitch control, pitch lock, same price as the tech's). I definitely recommend them...built very solid.
next you need good needles, some table come with them but most don't. there are two types of needles, elliptical and spherical. elliptical needles track better and are more common/cheaper, spherical needles provide better sound quality (i haven't really noticed though). spherical needles tend to eat up your records and are more expensive. Sure m447's (great for mixing and scratching) are quite decent and are widely used. I have a pair and they are great (not to pricey either) i'd recommend sure or ortophon, ortophons are pretty top shelf but the sure's will work too.
next, you'll need a mixer. start at entry level unless you know you'll be doing this for years. behringer, dennon, and vestax make good entry level mixers. (things to look for in a mixer: number of channels, high/mid/low eq, crossfader, number of outputs.) basically you want options! (i'd steer clear of digital mixers unless they are really nice)
Why vinyl? Vinyl reproduces 100 pecent pure analog sound, nothing digital about it. vinyl records give a certain element of transparency along with a very rich/warm sound. the downside is you have to keep your vinyl clean and buy new records when they ware out (it depends on how many times you play them...but usually they can handle being played over and over for a LONG time) (be sure to store records vertically and never leave them out in the sun...they will warp!)
hope this helps!
check this gear out...
Stanton T120c
Sure M447
Behringer VMX300
Go to thrift stores for vinyl!!!