I just want to say a couple of things:
1-I recently made an account on GOG, with the same "jonxiquet" username, so if my Secret Santa prefers to use it rather than Steam, now he can. I still don't have a wishlist there, but it would be similar to the one I have at Steam
http://steamcommunity.com/profiles/76561198021652235/wishlist
2-Remember than the Steam WInter Sales will start the 22th. I know our Secret Santa event starts on the 20th, but just be smart and wait a couple of days.
3-And lastly, I'll start sending friend requests to the new ones because on Steam, you can't gift anyone unless you're friends. I don't know if the same happens at GOG.
Please excuse my bad English.
Currently gaming on a PC with an i5-4670k@stock (for now), 16Gb RAM 1600 MHz and a GTX 1070
Steam / Live / NNID : jonxiquet Add me if you want, but I'm a single player gamer.