Wow, that's pretty extreme for home network. I tend to resist having switches. Most houses can have home run's to a media cabinet in the basement or something easily. How many floors do you have? You should be able to blanket most houses with a single AP. I have around 3000 sq feet and 1 54g and coverage is great. I even get coverage in my driveway and detached garage. I can listen to internet radio off of wifi while mowing the lawn.
All in all, short of perhaps too much wifi, you sound ok to me. Unless you are doing weird stuff, basic settings will be fine.