Ted Brewer has several designs that could be of interest... the more I look, the more I like a lot of his "power" designs. He doesn't have any real low power requirement craft, although several are quite reasonable.

He has also published a book: Understanding Boat Design

Blue Hill

A 27' Double Ended Motor Yacht

 

Reminds me a bit of the C-Dory's, but double-ended.

Grand Banks 33

A Blue Water Motor Cruiser

This is a "shippy" little trawler... smaller than a lot of what you find now, but capable seeming.

Swagman

A 34' Motor Yacht

A cruising boat with an interesting layout... a "separate" forward cabin with a foredeck between the cabin and the main house... check out the layout.

Quiet Times

A 34' Inland Waters Cruiser

Interesting craft... reminds me somewhat of Bolger's Sitka Explorer in profile, or even more of the Carlson's Biloxi Lugger Alligator. A slightly different take on the River Cruiser world.

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David Gerr, in his Nature of Boats book has a preliminary design for the Crackerjack. I liked the design with the interesting separate rear cabin/berths, but it wasn't available as a finished plan. Well, Ted Brewer has his Deer Isle 28 which seems very similar, and has the rear cabin... worth a look. It has been pointed out to me that this layout is similar to the Albin 27 commercial boats (which are no longer produced in that design, apparently).