Building a music server with Ayre DX-5

Need advice building a music server around Ayre DX-5.

Current thoughts. Mac Mini with SSD & 8 MG RAM connected to DX-5 by USB cable. Mac Mini on home network with music on a Drobo FS NAS all connected by Ethernet cable and controlling Mini from listening seat via iPad with WiFi connection.

Anyone done anything similar? Thoughts?