Alergies come from dander or silivia reactions. Mixing poodle into a breed does not decrease this, plus you can not ensure how much of the "poodle" the dog is going to get. You are only sure of getting a mutt when you mix breeds.
Poodles are not allergy free, they just create a lower amount of dander then many breeds. Frequent bathing of your dog also helps to decrease the dander in it.
Also, there are breed spicific alergy tests that can be taken to help you narrow down your breed of dog. Each breed has a diffrent amount of dander in it with a somewhat diffrent composition, as do people.
Mixing a breed is not ensuring anything. Having yourself alergy tested is the best bet to narrow down your choices. You have no idea how much dander is in any dog, and mixing two breeds does not remove problems. In fact, you wind up having to look over the genetic problems of BOTH sides now as well as possibly introducing new issues.
Hopefully when MyPoundPuggle is on here she can give you lots of information. There are tons of those dogs in our petstores but they charge outrageous prices for them. I see them a lot on www.petfinder.org and they are all in shelters, so their adoption fee is really reasonable.