i got an american standard bidet from plumbing express back in 98.
it has spray straight up and rim flush.i feel i made a good choice and i
and women have been happy with it.you can spray for a quick clean, or
fill it up with water for a good wash, and then when your done the rim
flush cleans it . the handle on/off diverter valve were about as much as
the bidet,ceramc valve but life time warranty from american standard.
its about like hooking up a sink ,but the j trap is under the floor.
lucas

http://www.minibite.com/america/malone.htm