Please do your research and have a vet lined up and a huge vet fund in place before getting ferrets. Make sure you have a 24 hr emergency service that will see ferrets and know what they are going to charge you. Ferrets tend to be absolutely fine until they have a catastrophe and won't live if you try to wait til morning or Monday. They also get horrible diseases that need extensive care. My ferret has insulinoma and needs steriods 2x a day or she has seizures. The last seizure she had, we were lucky and she only went blind. About 50% of ferrets encounter adrenal disease. They need treatment to stop the growth of the tumor before it closes off a major vein. My last ferret died of stump pyometra and I didn't get her to the vet fast enough to save her. That still cost over $800 that I had to pay up front.
Also, please know up front that they need 4-6 hrs of free range time every day, a huge cage, expensive food, and they'll poop all over the floor. They don't litter train like a cat and will poop where they feel like it. The room you keep them in will smell like ferrets the way a wet dog can be smelled across the room. You are signing up for 5-7 years of this, so please think carefully before you go to:
http://www.petfinder.com/shelters/OH305.htmlhttp://www.hofarescue.org/adopt_rescue.html This shelter is practically right next door to you.