Scott,
I just ordered my first digital camera.  I'm a serious amateur with a lot of
good, old, heavy SLR gear that I use for most things, but I wanted something
for internet sharing.  I am trying to decided myself what to do about the
camera/van power situation.
    I bought an 8 watt solar panel (about 12x19" ) that I use traveling to
trickle charge my primary battery & recharge my aux battery, & power my batt
recharger.  I like the solar panel, & the aux battery, etc.  I just don't
know yet whether I can adapt my camera's battery pack to charge off my
auxiliary Van batt or whether I will need an inverter also.
     The guy to ask is List member Ron Bloomquist.  He just showed me a
small inverter he has in his '84 that he uses to plug his coffe grinder
into!  He said it was a good one & cost $50.
He's out of town for a few days, but will be back.  I intend to ask him, you
could too.  He seems to have a line on them & has already worked out some of
the logistics.
    Phaedra
'85 Westy-Wolf
"Hester"