Reply to Hercules RMX + what mixer + 12" TT?

I got my RMX, been using it for a while, but like everyone says you start to outgrow it a little bit. Its hard to chop peices of a song, loop em, send it to another deck for modulation, etc etc. I still like it, does the basics nicely. However im looking at picking up a technics or two turntable this summer for my 12" records, Should I get another mixer for the technics, and can i somehow hook it up to work alongside my RMX? I would like this second mixer to be compatible with traktor perhaps, (so not a full analog one), and can be later used with CDJs, or other vynil TTs, les say....600 dollar budget for the mixer