Hey Davidny,
Don't you just hate it when your posts go unanswered?
I think of myself as a bit of a tech guy, but what is a Balboa Dolphin? (Makes me think of Rocky and Flipper)
I think you are a little wireless crazy, but it sounds ultimately convenient. For lazy people like me, it would be a great setup.
As for me, I have hidden speakers out on my deck that are wired to my main sound system. I have a volumn control on the porch (near the deck) so I don't have to run to the living room for sound adjustment.
As for the floodlights near the tub, I have a switch in the kitchen and I turn them off before I go tubbing.
(I do have a programmable remote in my home theater that handles everything. I hope that counts for something.)
Cheers,