So I went looking for a good website for sight words. I found one with printable flash cards, a word book with each word used in a sentence, and even 2 stories which include all of the "Dolch" sight words.
According to Wikipedia Dolch Sight words were compiled by a Edward Dolch in 1948 from the words he commonly found in childrens' books.
Interestingly, Wikipedia says:
Houghton Mifflin asked Ted to write and illustrate a children's primer using only 225 "new-reader" vocabulary words. The result of that challenge was "The Cat In The Hat"
BTW, the Wikipedia page for Dolch site words lists them all.
I printed off pages of flash cards, I'm going to see about getting them laminated for durability and shuffleability. I intend to start flashing them at him soon.
Now I have to figure out a game we can play with them.