That setup sounds very clean but what do you do about power? The WRT54GS
comes standard at 63mw and if you boost it over 100mw it will over heat.

As I said, in testing I've found it's completely uncessary to use higher
power settings. When using an omnidirectional antenna and higher power
settings you end up picking up MORE signals than you want. This actually
degrades performance. Now, if you were in an area with only 1 or 2 shore
networks then it might be worth using higher settings.

As for overheating, I've cranked my WRT54GSv4 to 200mw and it worked just
fine. This was for an anchorage in St.Mary's that had only one SSID showing
up. Raising the power to 150mw got me the signal needed. Otherwise I
usually leave it at the factory settings (or close to it). I've never had
an overheating problem.

The 200mw out of my little EUB-362 in my traveling set up makes a major
difference in usable range.

All I can say is my experience dictates otherwise.

-Bill Kearney