compact bookshelf speaker for my system

I am looking for a compact bookshelf speakers (main and center channel). For some reasons, I have to find the (bookshelf) speakers fit to my entertainment center (11.8" height).
I prefer to have the speakers to suit the other components.
A/V Receiver: Onkyo TX-NR801
DVD Player: Onkyo CP 701 multi-dvd changer
Subwoofer: Pinnacle Subsonic subwoofer (it was my best choice due to the limit of my size).

I listen more music (70%) than movie (30%). I prefer musical, great imaging, natural, non-fatigue, detailed sound. I am not a loud listener (mostly classical and easy listening).

Given the situation and preferences, I've searched and these speakers in mind:

Epos ELS-3
Monitor Audio Silver S1
Dynaudio 42

I fully understand these three speakers are not in the same price/performance level. I am thinking to get a used/demo one if it is worth to upgrade by putting more money (than buying a new, cheaper Epos ELs-3). Most important factor to find the right one is to get the speakers to best match with the other component for my first HT system. If you receommend any other brand/model (with less than 12" height), it would be great too. My maximum budget would be $700-800 (both bookshelf and center channel). Thank you for your advise in advance.