cool screen name!
cabelas & bass pro both sell butt seats and post / bases of diff styles.
or can try iboats
butt seat:
http://www.iboats.com/Butt-Casting-Boat-Seats/dm/cart_id.345451023--session_id.167894319--view_id.473678
Boat Seat Pedestals & Hardware:
http://www.iboats.com/Boat-Seat-Pedestals-Hardware/dm/cart_id.345451023--session_id.167894319--view_id.473670
good luck!