I'm hoping Uncle Sam owes me a wad of cash this year with the arrival of Lily and mom being out of work for 3 months to take care of her.
The Buffalo is pretty damn nice, But the Hertsens is no slouch so the Buffalo will be sold. I'm just going to give it a case worthy of it's stature before it goes. The Duet, as my homeboy johnny numbers put it, rocks. It's way more source than the soldering rig deserves but too convenient to not stick around for a while. Anyone with a MAC is crazy not to be using one unless they've got north of a grand to throw at their source. Like Dan said, you can buy a mac mini and the duet and be way better off than a lot of DAC's would have you and you get the transport for free.