I made Thanksgiving dinner in London last year. It was actually a lot easier than I would have thought. You can get a turkey fairly easily in London, which if you're otherwise scheduled to be there, might be easier to bring in from than from the US. Otherwise, I have to imagine that you can order a turkey from a butcher where you are, it just might take some advance notice. Be warned, however, that it might be a little more, ahem, gamey, than you're used to. My posh London turkey had feathers still attached.

You can make the pies if you bring Karo and pumpkin. I actually found the pumpkin and other ingredients in London. Here's the recipe I used:

http://www.eaglebrand.com/detail.asp?rid=696

It's pretty easy, and I think you ought to be able to find condensed milk where you are. Can't help you on pecan pie...I've never made one of those.

Cranberry sauce - if you can get fresh cranberries it's easy to make. Boil down a package of cranberries with a cup of sugar and some OJ (I can give you a more precise recipe if you decide to go this route).

Stuffing - Williams Sonoma has a great packaged focaccia stuffing mix.

Feel free to PM me. I collected some recipes and cooked a few "different" things that were easier to make given what I had available (I made a really yummy mushroom dish). I won't bore the rest of the group, but I know what you're going through!

Good luck!