So I am 5 9 looking for a good mountain bike to learn how to ride on the trails in Santa Cruz mountains. Looking for something to just blaze around the trails on and know that I have some good equipment that will get me where i need to go.
Here are some of the ones on craigslist I thought look good... The best place on CL for me to look is in the North Bay section, near sebastopol santa rosa rohnert park or petaluma

http://sfbay.craigslist.org/nby/bik/1222933056

http://sfbay.craigslist.org/nby/bik/1222906807.html

http://sfbay.craigslist.org/nby/bik/1222347654.html

http://sfbay.craigslist.org/nby/bik/1222051265.html

http://sfbay.craigslist.org/nby/bik/1221951229.html

http://sfbay.craigslist.org/nby/bik/1221648197.html

http://sfbay.craigslist.org/nby/bik/1221615951.html

http://sfbay.craigslist.org/nby/bik/1218680086.html

http://sfbay.craigslist.org/nby/bik/1217625191.html

http://sfbay.craigslist.org/nby/bik/1215507880.html

http://sfbay.craigslist.org/nby/bik/1220486580.html

http://sfbay.craigslist.org/nby/bik/1218767791.html

http://sfbay.craigslist.org/nby/bik/1214530764.html

Let me know if any of those look promising