Musical fidelity is a good choice. The A3 is one of my favorites. That will fall in your under 600 budget. The A3.2 will fall under your 750 budget. They musical fidelity x150 is another one of my favorites, but you have to like that "half width" component look.
However, my all time favorite under 1000 dollar solid state integrated is the audio refinement complete. I liked it enough to own is six different times. They are seen regularly here anywhere from 400 dollars up o 650 dollars. 500 or so should be the average price though. The alpha version offers pre amp outputs so you have the option to add a stand alone amplifier if you desire.
However, my all time favorite under 1000 dollar solid state integrated is the audio refinement complete. I liked it enough to own is six different times. They are seen regularly here anywhere from 400 dollars up o 650 dollars. 500 or so should be the average price though. The alpha version offers pre amp outputs so you have the option to add a stand alone amplifier if you desire.