My suggestion is to go and listen to a klipsch speaker and see if you like the sound. They would work great with classic rock, but remember the price for the klipsch is per speaker. The klipsch would be the easiest to drive as they are very sensitive and would work best with only 70 wpc. The other suggested speakers are much harder to drive. (sorry guys) A sub would probaly be not needed with the klipsch with 2 channel listening.
Classic rock, easy to drive, loud = klipsch