Hey, those are looking great Shawn! Don't beat yourself up over missing your Christmas-time completion target. Mine stretched out to be almost a 2 year project (on-again / off-again).
They are VERY heavy! I built mine in the basement and then carried them upstairs (w/ my brother-in-law's help) sans drivers. Even empty, they had to weigh close to 200lbs. each. I soldered up and attached the drivers in my family room.
As you (and
Hank (edit: formerly Frank Hankenberg :b )) may agree, in my opinion there are two main things that make these babies a big project. First, the shear number of holes for the drivers, ports, terminals, divider panels, etc...; it never seems to end, and you sweat bullets w/ every one of them. Second, as you assemble all the panels, the size/weight of the enclosures gets to be almost unwieldy. As I was flipping and flopping them around on the saw horses I was always worried that either one would fall off the horses, or that my saw horses would collapse!
I remember as I neared completion, there are a lot of details that take time to shore up. Forget target dates and just keep plugging away. You are going to be floored when you hear them!
Let me know if you have any questions at all...
PS: some pics of how mine turned out
Here 
