I found an old miyata on craigslist and was wondering if anybody can help me put a value on it? The ad doesn't say any specifics except that it is a 12 speed. Any help? I can't really tell the state of the bike as well but these were the pictures provided.

http://images.craigslist.org/00909_3...FA_600x450.jpg
http://images.craigslist.org/01515_4...LV_600x450.jpg

Any help would help a lot!
I really don't know much about bikes :T