I ordered my set right before I knew about the group buy (Dec 13th). At the time I placed my order with Erica over the phone, she hinted that they might get to me by Christmas, and I told her I wasn't expecting that to happen. I didn't, however think it was going to take this long!
Anyway, they finally showed up yesterday, and I couldn't be happier! They look amazing, and are every bit worth the money. To answer a couple of questions posted earlier, the gasket material looks to be of good quality and the EGR tube is NOT coated, it is just plain old steel.
I'm sure the rest of them will ship soon, if they haven't already. I think the only reason I got mine first is because I paid full price.
Hang in there guys - they are worth the wait.