Another site you might try is Fogster. The problem right now in the Palo Alto area is that Stanford University is always short of housing, and now is the time that the grad students are out looking, and grabbing anything they find. You shouldn't have too much trouble finding a house, however. $3000 a month can get you a nice rental in Mountain View. Craig's List is still the best place to be looking. Very few agents deal with rentals any more.