I would suggest looking for PC desktop speakers. They are normally active and small but you may have wierd connections to deal with since most of those have mini-stereo jacks.
I'm sure you would be able to rig something though.
/Marcus

Lounge: 861v4+ID40 (hardwired Cat 6), HD621, 2xDSP6000.2VC (l/r), DSP5500.2HC, 2*Jamo ARTina (rears), D2500, 556, 596P, PS3, Humax HDR-1000S
Bed 2: MD600 (hardwired Cat 6) , QNAP 453 Pro