Although not sub 200 dollars you can look into the k-flop from dynomotion. It runs $250.00 and I can say from experiance that the support is top notch. If you have any issues Tom the owner will help you work them out. The best part is it works with mach3 and the software is being updated regulary. It also works through usb and will offload the work from the pc so it runs way faster then you can get from just mach 3 and a breakout board. If its not for you good luck finding what your looking for.