Since this is a commonly asked question from newbies...I am going to make this thread a sticky that we can point others to. Thanks Sab30! I don't think that this list is definitive or comprehensive...so others may feel free to post other models left off the main list as bluewater boats to consider.
EDIT UPDATE 8/08
Here are "missed the list" boats that experienced cruisers have recommended as Bluewater Cruisers on this thread without objection:
Tayana 37, 42, 47, 48, 52, 55
RobinHood 36, 40
Just trying to keep everything succinct for new boat shoppers! Note that the boats on this list may have been overlooked by Mahina OR for some reason disliked. (Example: Caliber47 seems to have been eliminated solely due to aesthetic preference. Other boats have known issues which if repaired end up being very seaworthy vessels. ) Nevertheless...worth consideration.
No longer posting. Reach me by PM!