I really like Peachtree's iNova (~$1800). It has 6 total digital inputs: 1 USB, 2 Coax, 2 Optical, 1 iPod dock. 80 wpc amp, and a 32 bit Sabre DAC. (The previous incarnation had the 24 bit Sabre chip). Above your budget, but probably eventually available used would be their Grand Pre Integrated.
