If the 3200 had coaxial inputs I would consider the upgrade. With speakerlink only, forget it. A iPod, Wadia idock and 3100 are one of the simplest and good sounding systems around.

Avid Acutus, SME V, Benz Micro LP / Van den Hul Colibri XGP, Audio Research Ref 2 Phono
Meridian Sooloos C15 + MD600
CH Precision C1 DAC
Constellation Audio Virgo and Centaur Monoblocks
Sonus Faber Aida