So i was just looking though Andy mark (as you do before the start of the school year). I found the Simple Arduino Mecanum Control (
http://www.andymark.com/product-p/am-2973.htm), which is Two Victor SP speed controller with two 30 Amp breakers, for only a $100. normally all this would cost $132, so your saving $32.
Im just bringing this to everyone attention so everyone can know how to save a couple of bucks