I have taken the plunge, and ordered an SGS-1. Fairy dust be darned. I'll take the objective/subjective opinions of those who are using them, and predict it to be way more likely to make a difference on my system than not.
Wondering where to connect it though.
Macbook Pro with Halide Bridge is through the wall, so not an option.
Have a SEG, Coherent Power Supply, and Perreaux R200i intergrated amp.
I'd go for the integrated amp, Brett. Start small and simple - clip one cable to a spare input ground. Give it a day to settle (first time takes a while). Come back to it and listen - sound different? Take it from there.