I like the Dura-Bloc sanders. They sell a reasonably priced package of different sizes and configurations, and they also sell them individually. There are some better and much more expensive, too. Guess it depends on how much you're going to use them and how much you want to spend....

On the DA's, the air one's are made with different stroke lengths, too. I have a very short stroke Dynabrade DA that is my pride and joy!!! At low speeds and the correct pressure it does a fantastic job and requires less time with the hand blocks... When you get old and crippled up in the back, neck, arms, and hands it makes a big difference how much time you have to spend hand blocking!!!!