Requirements

Initially you need only bring yourself in a T-shirt and sweat pants, as you progress you will require 

Bokuto (Wooden Sword) Red Oak or White Oak ~$40 - $90
Shinai (Bamboo Sword) ~$75
Hakama (Uniform pants) ~$120
Kekogi (Jacket) ~$120
Obi (Belt) ~$75
Iaito (Training Sword) ~$650
Shinken (Live blade) ~$1200
Wakizashi (Live blade) ~$500
Bo ~$80
Tanto (Live blade) ~$300
Head Protection $150
Katana (sparring) $140
Kote (hand and wrist protection) $150