Anyhow - if someone wants to get a good taste of that multibit goodness, get the soekris board. Some come up cheap 2nd hand, just make sure that you out-ninja other folks who might also get their multibit sweetooth on.
I got mine right after they became available. At first it sucked ass and was borderline a disaster. The guy who designed them is pretty experienced in digital electronics, but not so much in analog, so there were fuckups. And by fuckups I mean a few guys got their stuff blown up because of asymmetrical PSU loading which spat out an uber nasty DC transient on powerdown. Also initially digital filters sucked, so they had to be swapped out. Same for Vref capacitance, which used to be lacking.
Supposedly that's been sorted for rev4, so if you're up for it, get a half decent +/-12V DC PSU and try to find a good input board from my compatriot Normunds at DIYA. Some folks say that, if done right the DAM can trade punches with Yggy and come out on top. In the leaner implementations it's still one of the best diy DAC options out there.
However, if you hate hassle/adventure, just get the Modi Multibit. I think that it's a much better option than half of the old multibit big iron DACs out there.
P.S. Should any of you need info about working with Soekris boards, drop me a pm. I've gone through DIYA threads, so you don't have to.
P.P.S. I killed my board by lifting one of the Vref cap pads.