My setup is also pretty close to what you have.
Bel Canto S300
Bel Canto Dac3
Magnepan 1.6qr
Apple Airport Express (wireless)
Macintosh (Itunes)
Kimber Timbre Interconnects (balanced xlr)
Kimber 4vs speaker cable with bananas.
All music ripped in Apple Lossless format.