We did it, we got our winter puzzle. It's the Sistine Chapel, 3000 peices by Educa (Educa puzzles are great for those of you who like to spend months working them.) We put together most of the edge pieces over the last 2 days and are starting on the hard part... the middle.
Hopefully we will be done by Christmas, because I think it's our house that is hosting... yup... pretty sure.
The last big difficult puzzle that we did was Guernica, by Picasso also 3000 pieces.