Recommendations for 1000

Ebay is fine in my experience. But the bidding process is aggravating. You pretty much have to use a sniper unless it is something that doesn't have much interest. I bought a great pair of old Phase Tech PC series speakers for almost nothing that way.

I tend to prefer subwoofers for sound below 70 Hz or so because you can move it around to overcome room problems. And subs have gotten much less expensive.

A room 50'x 25' with cement walls is going to present you a real challenge to fill for $1K. I don't mean to sound discouraging but that's a large room, no question. Yes, a large subwoofer is going to be needed for sure. But they alone for this size room could run close to $1K or more. My room at 13' x 23' x 8' with furniture, carpet, and drapes on a cement first floor was challenging enough. I've spent over $4K to finally get the sound and bass I want with 5.1 Surround Sound (B&W, Marantz, NAD, & Rotel, Monster cable, etc). The 5.1 fills the room vs 2 channel stereo which doesn't (at least not for me). I love hearing the music in front of and behind me. If you could close off part of the room and make a smaller listening room, carpet it, etc., it will be easier and less expensive to get the sound and bass you want. Yes, you can purchase 2 loudspeakers and a receiver for under $1K but will it be to your satisfaction for that size room? Not sure. Read Robert Harley's book, the "Complete Guide to High-End Audio" or his other book on Home Theater. All the best.

You are way better buying here than on fl-ebay.

Yes I completely agree with Regalma1 about Ebay. Unless there are lots of the same item, chances of winning the bid are slim. I've been there and unless I'm desparate, I will no longer bid on Ebay. It's not worth the aggravation. I'd rather buy the item for what it's worth. I would be skeptical buying any audio components on Ebay. The folks on Audiogon on the other hand are far more credible and trustworthy. It's their hobby. This is just my opinion.

What do you guys think about these?

http://cgi.ebay.com/Klipsch-Quintet-II-Black-Klipsch-KSW-10-Subwoofer-NEW_W0QQitemZ230131463825QQihZ013QQcategoryZ32861QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

They are more of a budget speakers but by klipsch, so I would figure they would sound pretty well. I would still need a receiver to power them, but then i could always slowly upgrade into a nicer system. But I'm at the moment more concerned with how these would sound.