Cedargrover gives good advice on the ELACS. Also the advice on the Vandersteen speakers is great too. I have the 2CE Sig II and they are very, very good for the price point. A good way to go about this is to follow a very good speaker designer/engineer like Richard Vandersteen, Andrew Jones or Kevin Voecks. These guys know what is important with regard to getting great sound from a speaker.
Also don't discount small speakers (standmount). Some of these smaller speakers give really great sound, maybe not the last bit of bass, but can provide tonal balance. Many sound great with lower powered receivers.
Also don't discount small speakers (standmount). Some of these smaller speakers give really great sound, maybe not the last bit of bass, but can provide tonal balance. Many sound great with lower powered receivers.