Based on what you want sonics-wise, I can recommend you audition the speakers I own, the Ohm Walsh 2000 ($2800/pr). If you search the reviews, you'll find my review of this speaker. I can add that as I have upgraded my electronics, the Ohms have allowed me to hear rather small differences in electronics and cables. Ohm allows a 120-day in-home audition. If you return them, you lose the round-trip shipping, but there is no substitute for auditioning stuff in your home, with your gear, and with your music. The Ohm Walsh series is scaled for your room's cubic footage, so you might need a larger or smaller model, but the house sound of Ohm Walsh speakers is pretty consistent.
As for an amp, the Ohms like juice, probably more than your Creek would offer. Something like the Wyred for Sound STI-1000 would be a great mate for the Ohms, and leave you with a few hundred for cabling.
As for an amp, the Ohms like juice, probably more than your Creek would offer. Something like the Wyred for Sound STI-1000 would be a great mate for the Ohms, and leave you with a few hundred for cabling.