I agree with Peter's assessment of the Klipsch. Make sure you take your time, give them more than the "10 minute" listen that many people do in the box stores. I, too, liked the bass and midrange of the Klipsch but found the highs sharp and painfull after about 10-15 minutes. I'm in no way saying that you'll feel the same way about them, just saying to give them a good...very good listen before you judge them.

I also agree on looking at floorstanders for that size room and putting off getting a sub until you can afford it. M60s and 80s go very low as it is, btw, so for MOST music, you'd be fine. Get a sub when you can afford it, but don't scrimp on the fronts.

Half of communication is listening. You can't listen with your mouth.