Jo,
There is an amazing Hosta nursery. called Plant Delights Nursery, just south of Raleigh. It is primarily mail-order, but is open to the public four or five times a year, and it is AMAZING! It is on 9241 Sauls Road, and their phone no. is 919-772-4794. Check the website for the dates when they will be open. They have more varieties of hostas than I have seen anywhere, and they are incredible, not cheap, but incredible. Go with a friend or two, and each buy some of everybody's favorites, then plant them and wait three years and divide them out for all to enjoy!