If you listen to 2-channel and your options are open, consider DSP speakers. They contain preamp, amp, and speakers all in 1 cabinet. You may connect your Wadia iPod dock directly to the DSP speakers. The Wadia will reduce jitter, so you should have a reference level digital signal. Connect that to DSP speaker and you won't be able to ask for much better. The money you may spend on G68 could buy your DSP speakers. And you will have an excellent sound right away without having to tweak an analog system for years!

DSP6000, DSP5200, DSP5500VC, P300W, SW1600, G68, 568.2, HD621, G57, G55, Oppo BDP-105.