I've had both the Harbeth P3 and the C7 over the years, and I was impressed by both. Harbeths are designed to sound their best with the grilles on. With a 3k budget, you can probably find used C7s or (maybe) 30.1s if you're patient.
I would recommend looking at Dynaudio as well. The Special 40 is a great speaker at 3K, and it seems to fit what you're looking for. The new Evoke series is very good at a lower price point. For my taste, Dynaudio tweeters (I've heard four different models) are perfect - smooth, no grain, nice detail. Dynaudio bookshelf speakers typically have great bass for their size and image very well.
Just my two cents,
Scott
I would recommend looking at Dynaudio as well. The Special 40 is a great speaker at 3K, and it seems to fit what you're looking for. The new Evoke series is very good at a lower price point. For my taste, Dynaudio tweeters (I've heard four different models) are perfect - smooth, no grain, nice detail. Dynaudio bookshelf speakers typically have great bass for their size and image very well.
Just my two cents,
Scott