Reply to Turntable for mixing/learning to scratch on?

Birthday coming up, GF told me to go buy some turntable to have some fun with, expand my horizon's. I'm a mobile and have not determined if it's something I would ad to my setup or not at this point. I was looking at the following turntables to have some fun with, learn to scratch on. Thoughts please?

Audio Technica AT-LP120 - $220
DJ-Tech SL1300 MK6 - $340
Stanton t.92 - $299


Of course I could also use a recommendation on some needles etc....

Thanks in advance!!!