Blue Water Cruiser
One thing I would suggest as well.. if you have a strict $100k budget. Make sure you buy a boat for about $50k. It could cost you another $50k to get out and cruising, given all of the maintenence and etc. that is involved. You may need to upgrade your sail inventory, replace/overhaul the diesel, repaint the bottom/topsides, replace or rework the wood, replace the stove, etc.. Make SURE you know what is necessary before you buy. Marine outfitting can cost a bundle.
At the very least, don''t go any higher than $75k, as $25k is a small safety margin on a used boat purchase.
And make sure you hire an independant surveyor who has no affiliation to the broker before you buy.