There is an NAD C375BEE on Agon right now for under a grand. This is plenty "beefy" with a conservative 150W per channel into 8ohms. A very nice sounding amp at this price. Sophistication of design far exceeds most of the big name solid state stuff from the 70's.
Other nice options at or below $1K:
Musical Fidelity A-1 class
Cambridge Audio 840A v2
Blue Circle CS (hand wired quality)
Other nice options at or below $1K:
Musical Fidelity A-1 class
Cambridge Audio 840A v2
Blue Circle CS (hand wired quality)