Hi,
after all of the car-bashing sentiments these days and my terrible driving skills, I wanted to try bike commuting. I was wondering if anyone out there can give me some opinions for picking up a folder? Thanks a lot of advance!

Here are the specifics:
-distance: 6 miles & a train ride (BART)
-terrain: can be pretty hilly (SF), but mostly paved
-height: 5'5"
-budget: <$500
-Also, I would prefer to have a bike that is good out-of-a-box and low maintenance