I am needing recommendations for a good brand of either motors or servos. I am leaning towards a 12v DC motor, since I don't exactly need the precision of a servo. I need a high torque motor, in the neighborhood of 1000-2000 oz-in., but I don't need more than 10 rpm. Should I consider a motor that already can reach the required torque amount, or would it be better to add additional gears? My budget is about $15-$40 for a single motor.