Definitely go for a good teacher ASAP.
That said, depending on if you're going classical or jazz, Rufus Reid - The Evolving Bassist might be a GREAT resource for you. The book and DVD are heavily centred on jazz without a LOT on bowing (he does give the basics, though.) Half the DVD is spent on being a jazz bassist, and half is spent on
playing upright bass. The second half is a HUGE help, and will provide a lot of really great instruction that will get you started until you can get a teacher. If we're talking newbies without teachers, this DVD and a full-length mirror (so you can check your technique, not your biceps!) would solve a lot of problems...it's by no means a solution to the "I have no teacher" problem -- kind of like how a band-aid isn't a solution to a gunshot wound -- but it
will help.
EDIT: By the by, I'm an electric bassist of 3 and a half years and a DB'er of 6 months. Probably the biggest problem you'll find with the instrument initially will be fatigue, unless you're doing regular 4 hour gigs on slab. If it hurts,
stop. "No pain, no gain" should NOT BE IN A MUSICIAN'S VOCABULARY. That said, it seems pretty normal to get fatigued easily on DB initially. It won't take long before those forearms buff up though! I couldn't play for more than a couple minutes when I first started, and tonight I did a 2 hour gig (my first jazz gig

) after a 3.5 hour rehearsal on a bass with action much higher and much higher tension strings. The muscles will develop, just takes a bit o' time.