Now I know what I'll use my tax refund on..
(not that I expect to get any....)
US Submarines - Phoenix 1000 Luxury Sub! 
The Phoenix 1000 is a 65-meter (213') personal luxury submarine. The initial design was originally executed for a client and now awaits a buyer. As proposed, the submarine would constitute the single largest private undersea vehicle ever built, and arguably, one of the most significant personal transportation devices of the century.
A Luxurious Undersea Vehicle
This design, which we have named the Phoenix 1000, has more than ample space. The total interior area of the submarine is in excess of 460 square meters (5000 square feet). The significant volume, coupled with very large acrylic viewports, and the potential for relatively large open spaces, results in a vehicle as luxurious as the finest of motor yachts.
http://www.ussubs.com/submarines/phoenix_1000.php3 General Specifications: Phoenix 1000
Certification
ABS+A1 Manned Submersible
Operating Depth
305 meters
Passengers
varies (470 sq m interior)
Crew
3
Length
65.0 meters (213')
Beam
8.0 meters (26.3')
Pressure Hull Diameter
6.7 meters (22') center
Weight in Air
1500 tons
Dynamic Characteristics
Maximum Surface Speed
18.0 knots
Cruising Surface Speed
16.0 knots
Max. Submerged Speed
10.0 knots
http://www.ussubs.com/submarines/phoenix_technical.php3
And the best part:
The estimated price of the Phoenix is $78 million!! 
PDF brochure on the Phoenix 1000
http://www.ussubs.com/submarines/phoenix.pdf
PDF brochure on their other luxury subs
http://www.ussubs.com/submarines/largesub.pdf
I wonder how many of these they'll sell a year (other than the two I've ordered..
)
