mini-box.com. They have several options that I wish I would have seen before. One of the cool things about the power supplies from mini-box.com is they are voltage versitle. You can run it in a car, and not worry about supplying 14 volts or 11 volts. They will take care of it for you, while not generating extra heat, or requiring a fan. They also have several pre-assembled systems. These are perfect for use in a car or for amateur radio hobbiests running a computer on 12 volts.