Advice fo new-set-up
First off don't listen to the comments that state to stay away from one company or another just because they are big or small. Instead focus on getting the gear that matches your style of riding.
By your post you wanted a set-up with quick response. In this case you will want to aim for boots and bindings that are higher in the stiffness scale.
From your post and name and previous board choice it appears you are of the female gender. In this case make sure your set-up is women specific. The flex patterns, stiffness of material, and postioning on the equipment is designed to work with women specific body geometry.
For boards look at these companies - Burton, Ride, Arbor, K2, or some local company in your area
For Bindings - Ride, Burton, Salomon
For Boots - Burton, Ride, Salomon, K2
I have friends that tried out other companies and these companies typically was the most common gear purchased.