I hope your family has a wonderful and peaceful Christmas!
For how I design our cards, see last year's post here. (And yes, I see about fifty things that I would change about this year's design, but I was four days post-baby when I did them, and probably half crazy). I used Persnickety Prints to print them again, and got truly excellent service (again). I would highly recommend them!
I hope you have an amazing holiday!