Orleans is very nice, the surf fishing on Nauset is top rate. But Chatham is the place IMHO. Its got it all - surf, tidal inlet, flats, bay, kayaking spots, national seashore, wildllife refuge with sight fishing - everything. I like the Stonehorse a lot, give Matt a call - he takes good care of Forum members. We do a spring clave there. It's a few minutes down the road, but as others have suggested you can also stay right in the thick of things depending on your budget.
There will be lots of bait in the area then (already thickening up) and the fish will be fattening up for the fall run. Look for moving water and bait (indicated by birds) and your line should stay tight.