Since your budget has such a wide range, the question to ask is whether you (A.)crave the best possible music reproduction, or, (B.) do you want to hear nice-sounding music.
If the answer is A, then look at speakers between $1k-1500. If you go cheap, you'll be constantly upgrading and spend much more $$$. A great value is the Aperion 6T towers, plus you get to hear them in your home for 30 days with free shipping both ways.
If you chose B, then the Infinity Primus 362, Paradigm Monitor 7's, or something in that area will keep you happy.