Here are a couple of links that will give you some information that many have already said - read this and think about what you are planning and if it fits this criteria. I will also suggest that you think about timing - right now people are giving up their dogs because they cannot afford to keep them or have lost their homes - shelters are full. From a purely ecconomic and marketing standpoint - you may not find homes for them so be prepared to keep 4 - 6 puppies forever cause once they are past the cute puppy stage - they are harder to place.
http://www.akc.org/breeders/resp_breeding/index.cfm
http://www.dogplay.com/Breeding/ethics.html
You would want to make sure that the male and female you are using have had the following done:
FANCONI test - you would want both of them to be clear.
EYES - clear for PRA and PPM too - no history of cateracts or Glacoma.
Thyroid - you will want to make sure you know the results of this so you can plan breeding to non-thyroid affected dogs if possible.
You will need to have at least $3,000 set aside to cover and emergency c-section - or have at least that much on your credit card. Should your bitch be in crisis - the first thing Emergency Vets do is check your credit.
You will want to research pedigrees so you have a better handle on what lines might not go well together temperament wise.
Do you know enough about their behavior and training to be a resource for the people who would buy your puppies? If not - you are not doing the breed a favor.
Puppies need dew claws removed at 2-3 days of age and at least 2 -3 sets of shots prior to being able to go to new homes. The litter will have to be registered with the AKC so that you have puppy papers in time to go with new owners.
Legal nuts and bolts: Make sure that you are able to financially comply with the provisions of your states Puppy Lemon Law. You will need a business ID number and will need to keep track of revenue and expendetures. (be prepared for audits cause IRS loves to audit kennels)
The largest problem that you will have is; I don't know a single breeder who does all of the above who will sell you a dog or a bitch for your stated purposes. If you are going to show and be involved in the breed and want to learn from someone - you may find someone willing to work with you but not to churn out puppies that will end up in shelters of puppy mills and we will have to rescue.
So you decide - if you want to really be involved in the breed - happy to work with you. If you are going to only breed - not with my dogs.
re: making money you bet I've made money - I figure about $250 profit breeding intermitentely for 25 years. I suppose if you add in the 7 years of care for one of my oldies that someone just got tired of - that would probably be gone. Then there are the rescues that I've taken in and provided care and food for - so maybe I haven't made any money at it.