Pity that no one has mentioned a Mark 1 Sabre 38. If you know this boat you will know how big the oversight!
We looked at three Sabre 38 Mark I's recently. One had a split main cabin, I think they made about 25 of these. Not for everyone. Of the other two, one was a wreck and the other was very well kept. If owning a 30 year old boat doesn't bother you, this last one would keep many a sailor happy.
To the OP - if you do a search on YW and type in your parameters you'll get a lot of boats to peruse. The east coast is like a boat mall, plenty to choose from. But keep in mind not all boats are accurately presented on the Internet. Looked for signs of aged photos and be prepared if you go to see one.
I'd also recommend you call a local broker and ask for soldboats info once you whittle down your list to a manageable size. This will help you in the offer stage of the process.
I listed the boats that we took pics of that are still for sale in the boat buying assistance thread - last page. If any of those boats look good to you, PM me for pics and comments.
FWIW, I'm in complete agreement with those who recommend a boat that sails well in lighter air. Nothing can spoil a nice day sailing worse than having to turn to the iron genny.