Where can I train two handed weapons. I can't find the trainer anywhere. Is there a wiki or anything listed with the available trainers?
There are two trainers for two-handed weapons:
Note there is no journeyman trainer for two-handed weapons, like many of the other skills.
Addendum: The strategy guide confirms there are only two trainers, and no journeyman trainer.
I found that you can train in sneak/archery/one-handed/two-handed kind of fast by activating the warrior stone and attacking one of the two NPCs that you were supposed to visit in the beginning of the game.
I leveled my sneak and one handed up all at once one day just by doing that repeatedly, I even started on two handed and archery but archery took longer.