Your sig. is a bit inconsistant, you say non DSP fronts but your post mentions a G68. I only say this because having any 18 bit speakers means you are downgrading the overall capability.
I have been in a similar situation to you, I know streaming makes sense but Sooloos is a big investment. My system is under going some changes at the moment, but I know I will end up with Sooloos eventually because M know what they are doing and I love the 'sound'.
I have been sitting on the fence a bit, but with the TwinStore replacement coming out recently and the iPad App enhancements in the works, it is starting to make a lot more sense.
Cheers Greg