You NEVER SHAVE a Siberian husky. Ignore people who tell you to do so. It destroys the coat, opens up the skin to problems like sunburn, and is completely pointless. A well-brushed Siberian provided with plenty of shade and water does fine in the heat. Just expect that the dog will sleep during the hottest part of the day, and only really be active in the morning and evening.
Now, to your other questions:
2. How hard are they to raise?
Siberians aren't the breed for everyone. They are independent, not entirely obedient, and MUST have a well-fenced yard. They cannot be allowed to run loose, or you will never see them again. They can be destructive and noisy when bored. They shed more than some people can deal with. They can kill cats and small animals.
TOO MANY people buy this breed for its looks, and don't understand the breed itself. Don't be one of those people; do your research.
More info on the breed:
http://www.shca.org/shcahp2b.htm
http://www.shca.org/shcahp2a.htm
http://www.kaylenbergsiberians.com/ready.htm
http://www.siberianhuskyclub.com/abouthuskies
http://www.adoptahusky.com/education/AAHI-education.html
Please read ALL of the information provided at these links.
3. "Where can I get one with papers and everything?"
From a responsible breeder, one who does genetic testing (hip and eye clearances) and actually proves their dogs worthy of breeding somehow. This link can help you learn who to buy from:
http://www.adoptahusky.com/education/Where%20to%20Find/Where%20to%20find.html
Be aware that a GOOD breeder will only sell pet-quality puppies on a spay/neuter contract. They don't sell to people looking to "recoup their investment" by backyard breeding. If you only want a pet, there is no reason to breed it. Let it be your pet.
4. "How much to they typically cost?"
A well-bred Siberian from a good breeder will cost $600-$900, depending on the region. Anything more than that is foolish, unless you are buying a dog specifically to show.
5. "Would a male or female be best?"
Opinions differ on which sex is "better" in terms of personality. Personally, I don't have a preference. Males are less expensive to neuter. As to your comment on breeding a female and selling the puppies, see my comments above. There is no reason to breed your pet when so many Siberians sit in rescue/shelters. Unless you are going to dedicate yourself to having a *positive impact* on the breed (by showing or running your sled dogs, and breeding only the healthiest, best examples of the breed), please don't breed. The world is already packed with carelessly-bred "pet" Siberians.
Not trying to be harsh...after more than 20 years in Siberian rescue, that's just the way it is.
Again, please research this breed carefully before you decide on one. They are pretty - but that is not all there is to them.
ADD: Siberian huskies are NOT Labs or Pit Bulls. As I said, they don't live to please you. You will not be getting that kind of temperament, or that kind of dog. And, IMO, no female dog should "get prego on accident". You either spay the female at a proper age, or you are responsible enough to properly care for a female in heat.