Personally, I would avoid Klipsch. Thats just me. If you can listen to them and like the sound, again, its your ears and ducats!
Some people like Polk, no experience myself, but I have repeatedly heard they like a lot of power. Perhaps another here could elaborate and expound... or say not to worry about it.
I've heard some good things about PSB, KEF and Elac can be good. I Like Monitor Audio A LOT! (Almost bought in the Silver line. But Bronze line is supposed to be solid, too) Also look at Fluance Signature!, heard good things about them from some well respected cats here! I've spent months researching. I want now, but might be waiting another 5 months for my speakers!