Scott sent me this link to Mountain Valley Seeds, and I liked it so much that I ordered all of our seed for next spring. I think I have spent more at Ace Hardware in the past. These guys typically sell seeds in 1 oz. quantities, which is a lot more than you get in the packets. Take a look, you might like what you see. You can store the extras in your freezer until the next year.
They do sell hybrid seeds as well, but they are well marked. If you want to start saving seeds to see what works best in your soil and with your climate, this might be a good place to start.