If you are researching quality dishwashers and Kitchenaid is one brand that you may be considering, Amazon can be a great place to find out about what is available, where the best price is and more. They also have probably the best customer service in the business.
These dishwashers have some models with some cool features like a food chopper garbage disposal attachment to help eliminate pre rinsing!
If you are also looking for an installation kit, usually these are available right on Amazon as well. As far as installation instructions if you are choosing to do it yourself, look at Youtube – there is no shortage of excellent videos taking you through the process step by step.