Best bookshelf speakers under $1,000 for NAD amps?


I have a NAD C160 pre-amp, a NAD C270 amp and a NAD C521BEE CD player.

I like the warm, liquid sort of sound and listen to a wide range of music.

With very limited space, (12'x16' room) bookshelf size speakers seems appropriate, can anyone recommend a good match for the NAD amps?
128x128musicallyspeaking
Onix Reference 1 Monitor Speaker. Still a great value used between $500.00 and $600.00
I still have my Alon Petites in a system for our home gym. I originally used them with an NAD integrated (Sorry - don't remember the model number) in a medium-sized den and they were great - very dynamic and musical. Now using them with an all-Myryad system and still love 'em. There is a pair PLUS a center available right now on Audiogon that looks like a very good deal, well below $1K. When I saw the ad, I actually started to think about where I could use another small system in the house. They are that good! I recall that they were reviewed very highly by Stereophile. If you get them, I highly recommend bi-wiring them.

Here's the link:
http://www.audiogon.com/cgi-bin/cls.pl?spkrmoni&1249021295&/Alon-Petites-Monitors--LCR

Good luck!