The beauty of a book shelf speaker is the small cabinet which can really make the " box " disappear. I am reluctant to recommend a three way in a bookshelf. If you go with a bookshelf make sure the midrange is really satisfying, if it is you won't find yourself lusting after more bass. The common complaint on speakers, almost all speakers. If you find one that is easy to drive the you should if possible consider a small output tube amp. Don't buy the hype that all tube amps sound great, so you really want to make sure the tube amp gives you the wonderful midrange that is possible.
Good luck
Jim
Good luck
Jim