Hello and congrats on your decision to adopt a Sphynx! My family and I are proudly owed by six of these hairless wonders!!
As far a finding a kitten, just make sure you check out the breeder. Ask them for a vet reference, ask if they scan their cats for HCM and also if there is a health guarantee. I also personally believe that finding a breeder that shows their cats is a smart thing to do. I personally do not breed, but I do show my cats in CFA and you can meet some wonderful breeders at the shows. Here is the CFA Cat Show Schedule http://www.cfainc.org/exhibitors/show-schedule.html
. Maybe there is one in your area.
As far as the price you are looking to spend, most breeders charge $1100-$1200 for a kitten. I know that is a lot of money and sure you may find a breeder that will give you a kitten for $900, but if it ends up being sick or having medical problems you will pay more in the end.
I will PM you websites of breeders I have personally met and also a few Sphynx Forums.