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
The PSBs are in the same general school of design as the Paradigms, but I prefer them for a little more smoothness, linearity, and inner detail. For stand-mounted, you could go with their Image B25, but I think you'd get a better match for the room and more bass extension with a small tower from that series such as the Image T45. It's only 36" tall and 7" wide.
Onix Reference 1 Monitor Speaker. Still a great value used between $500.00 and $600.00