"and I did find a paper which showed earthshine intensity at about 1/10000 of sunshine (no, wait, damn it, that's w/ respect to sunshine on the moon, not the earth, and I'm sure there's a difference due to the atmosphere)

oh well"

Solar radiation at Earth distance...- actually the "Maximum Solar Intensity" is 1418 watts per sq meter
btw: Mercury is 9350, Venus is 2700, Mars 600, Jupiter 52, Saturn 15, Uranus 4, and Neptune 1.5 W/m2
Ref., pg 454 of "Space Mission Analysis and Design", 3rd edition.
So it's not that much different from Earth's surface radiation.
Anyways I thought Earthshine would be quite a bit higher.
BUT I wonder if it's the level energy which is recieved from the Moon. In other words what I really would like to know how much energy you would receive from Earthshine if you were standing on the Moon. This COULD be the energy as detected from Earth- it's two "bounces" instead of one (and the Moon is a lousy reflector:).
-gb