looking for a good bookshelf moniter

I am looking for the best bookshelf i can get with a budget of no more than $300. I want to look at used so i can get the best value. I am also not worried about extended bass because i will be matching it up with a sub. i would like something is good at detail resolution, soundstaging, imaging and extended high freq as well as being a close to flat response. I have heard the new Totem Mite, PSB Image B25 and an older Kef Cresta 2. I really liked the PSB although it had more bass than i needed and cost more than i would like to spend. I would like to hear its little brother the B15. let me know what you have heard and your experiences in this price range. what would you recommend that i listen to before i make my decision.

thanks jared