There are several different choices, sizes, materials for crates.  I don’t believe in buying more than one crate for the lifetime of the puppy/dog.
My personal preference is the wire crate for a vizsla the size we recommend is 36x23x25.  Golden Retrievers and weimaraners will need a bigger one to stretch out into and the correct size would be 42x28x30.  They are easy to clean, there is a lot of air circulation, puppies/dogs see what is going on around them, and they are easy to collapse and take with you when you are traveling or need to move it from place to place.
That may seen huge for a little puppy, but remember that your little puppy will grow into a medium or large breed dog.
Most of the wire crates come with a divider to make the crate small and comfy when the puppies are small and as your puppy grows you can make the crate larger by moving the divider into a more comfortable space.
There is also a plastic crate that you can purchase.  These are harder to clean and you most likely would have to purchase different sizes because they do NOT come with dividers.  Also the circulation is not as good, because it’s all enclosed.  In the summer it gets really warm and moist in there.
The other choice is the material mesh type crate. These are ONLY good for adult trained dogs, puppies would chew out of this type in a flat minute. While they are light weight, and collapsible they are not the safest for dogs.

Our suggestion is check out WalMart for these supplies
Pet Edge.com, King wholesale, are two other resources available on-line.