http://www.etsy.com/search?q=nautical%20decor&ship_to=AL&ref=auto5 Here you can find many interesting decor stuff for the basement and also the rest of the house.
Interesting and creative design. We like your use of beams on the ceiling. Nice berth design! You have a very creative placement of the bar area.
Nice graphics, and you apparently did some good research to have a map of Cape Cod on the wall near the fireplace!
A few negatives: Placement of the bar area next to the windows puts the wine bottles in the sunlight -- not good for the wine! We did not see any sink at the bar, which would limit its use a bit.
Overall nice effort and we appreciated your great creativity.
I'm distracted by the decorative scheme, which wouldn't and shouldn't ever be seen on the Cape. That said, there are a few architectural features I like. The corner fireplace is very nice, and I like the use of the diagonal wall to close off the storage room and leave more space for the main area. I think the wine rack in the bottom of the bar is very creative and reminiscent of a boat, which does fit but maybe could be moved to the back wall for the sake of the wine, rather than sit out in the direct sunlight. If the ships berth remains under the staircase, I would also open up the side facing the main room so it's not so dark and cave-like. A curtain can be added for privacy, or some kind of fold away screen.