Yes, drivers around here are often jerks.

It can actually be more dangerous riding on the sidewalk, specifically at intersections - drivers don't see you before they turn.

If you're looking for a good commuting route, go to:

http://www.bikewashington.org

and join their message list. It's a yahoo group. Post a message with your start and end points and someone out there will probably be able to advise you on the best way to go.

The bikewash list is also a great place to ask for pretty much any kind of cycling advice. Sometimes people also post about group rides that they're planning.

And congrats on the new bike! Have fun!