In addition to the one you are talking about I've found this:
http://www.dvdgpsnavigation.com/LEXUS-ES350-NAVIGATION---7-quot--HD-screen---Bluetooth-A2DP---ipod---Notebook---File-browser---Game_p656.html
Which is a lot cheaper - but that makes me wonder if they are equal in funtionality.
Does anyone have any first hand info on these? My wife really misses navi and I'd like to surpise her with it.
Her's is 2007 ES350 non-navi.