Ok I have Considered your questions and thinking how I missed those details but to the point...
2 motors will be close to each other and what I want them to do is spin in one direction (both in the same direction at same speed mayby one delayed from the other by 1 or 2 sec) slowly and then work faster then slower, stopping every now and then at a random rate. The motor shield will run 4 dc motors at 3v to 36v and can handle the current of the motors. The shield can also run 2 stepper motors and 2 servos if desired and that I wont be needing in this anyway.
Thanks for the help I really appreciate it
sincerely,
Matthew