Someone said that Austin is bike-friendly?

That hasn't been my experience at all. Along the north side of the river / downtown and around the UT campus is excellent, but if you dare to venture out of the paths and onto the streets anywhere else, you're fodder for abuse in my experience. I've had more people shout and throw things at me in one day of cycling around Austin than I typically get in two or three years of daily cycling in Colorado.

Gutter-bunnies and sidewalk cyclists are legion in Austin. A couple of months ago, I was walking along the sidewalk and a whole herd of OCP mountain bikers came thundering by on the narrow sidewalk on their way to a nearby trail. It was a Sunday and there wasn't even much traffic on the adjoining street!

Pluses about Austin: The trail system is excellent. If you stick to downtown and the campus area then street riding is just fine. There are a zillion buses constantly running so it's easy to draft behind one or hitch a ride. There's a large community of fixed riders. There are good bike shops all around Austin. There is no winter so you can easily ride year round.