By the way, increasing the power output of the WRT54G(L) units beyond about 70mW is asking for trouble. The extra heat generated can/will damage the RF frontend. So don't just crank it to maximum...

I notice that Tomato defaults to 42mW. That's enough for me.

Also cranking power ouptut doesn't increase receiver sensitivity so if the other end of the link (laptop etc) doesn't have enough power you're wasting your time.