You'll be able to find good snap peas at Berkeley Bowl well before they find their way into most Farmer's Markets. Stringless edible-pod peas are more expensive than other varieties, selling for between 3 and 4 dollars a pound.
Discerning pea enthusiasts will probably want to remove the stem end of the pod before eating. Still, these are so crisp and sweet right now that I ate several pods whole while prepping them.
We dropped them in boling water for two minutes, transferred to an ice bath, and then served over a pool of romesco sauce. They are also great in soups, as they do not require shelling.