If you don't want a bike that will get stolen, you'd better stay away from namebrand bikes, like, Trek, Giant, Raleigh, and in particular the Cannondale Bad Boy! The Bad Boy is a hot item in the Bay Area!

If I were you, I'd search for an old used chromoly steel bike. Otherwise, I'd just go to my local Schwinn dealership and get some kinda town bike within my price range.

Also, you might wanna consider a nice single speed road bike in chromoly, from wherever....

Good Luck!

PS.

These are really nice bikes that would fly low on the thieves radar screen:

1) The Schwinn Sporterra Comp ~ $660
www.schwinnbikes.com/bikes/hybrid/2012-sporterra-comp-mens-14564

2) The Jamis Coda Sport ~ $560
www.jamisbikes.com/usa/thebikes/street/coda/12_codasport_bk.html

3) The Schwinn Sporterra ~ $410
www.schwinnbikes.com/bikes/hybrid/2012-sporterra-mens-14553