I'm currently studying for my undergrad in CS, and considering to do a grad in both CS and Math. I would like to see what you guys would recommend to prepare myself for a field as a Quant. I am specifically interested in Algotrading (algorithmic quant) position. To be able to write models and software to do automated trading. Any suggestions on where to begin? I have no familiarity with trading. Is it possible to setup a practice account and begin doing some trades so I understand how that works?