Larry W4CSC wrote:

Webfoot RS-232 to DCHP-enabled Ethernet adapter
virtual serial port software for your PCs
Noland NMEA multiplexer.
Netgear MR814 802.11b 4-port + wireless router
shared printer (HP) is hooked to one of the fixed ports
Plug the cable modem into the router WAN port
dock's cable TV system
buy broadband internet from the cable company.
cable internet to the "host boat",
broadband expenses on the dock

Ever considered just going sailing? :-)

Pete