Hi there warpig1,
Firstly, Wishing You a Very Merry Christmas :-)
I put these guys up often as I can, as we drove 300 miles each way to rescue our super dooper gorgeous Doggy from them and we now sponser a dog.
There are so many rescues and each dog needs a loving forever person.
I only have 1 extra note to add to all the amazing advice and that is your holidays lol we go only to doggy friendly places and if we need to go out for longer than 2 hours I drop him off at my brothers to be walked with their dogs.... so, here is Many Tears and they work very very hard with their site.... They will do home checks thoroughly, and if they don't have someone to see you then, like us, we had to give 2 references and send lots of pics of the garden, to show them it was secure.
http://www.freewebs.com/manytearsrescue/dogslo okingforhomes.htm
Best of Luck with your new pooch :-) I think you sound like a lovely future parent
B. :-)