All About Reading- HIGHLY recommended by many.
Bob Books- I have been using these books for years with my kids and really like them.
They are great early readers!
Preschool Prep DVD series- I have seen these movies advertised and they really sound fun. I am sure they are great for little ones!
Handwriting Without Tears- a fun handwriting program that we have been using for a few months now with great success!
Winning With Writing- I used this and their grammar program this year for my son. The books are very well done & the price is great!
Wordsmith Apprentice (pre-writing for grades 4-6)