There are a number of good options to choose from. Among brands distributed by traditional channels, some good names that come to mind are Paradigm, Klipsch, Polk, B&W, KEF, Magnepan, and a few others that I know I'm forgetting. Among internet-direct brands, there are a number of big players. There's Axiom Audio, Ascend Acoustics, AV123 (Rockets, X-Series, and Onix Reference), and more recently HSU Research, SVS, and Outlaw. Outlaw already has their bookshelf speaker on the market, and the feedback on them has been excellent. Their LCR is due this fall, and the concensus around here is that the other two speakers that Outlaw has mentioned as possible additions to the line are a floor-standing speaker and a surround of some sort.

What sort of budget do you have? What speakers have you heard in the past that you were particularly fond of?