M.C.
My son didn't start trainging until 3 1/2... he went through the same type of things. Then he didn't want to try because he was afraid of the dark bathroom. So i placed the training potty in the kitchen. Just be calm and patient. You will need to just make a decision that you will do this!
I was told by his daycare to start bringing him in underwear because they had 10 kids in the class, no younger kids could move into the class until 1 of the 10 were fully trained and could move up....
I picked a long 3 day weekend, stocked up on food, M&Ms in a cute container as a reward and carpet cleaner and we just stayed home. He ran around in a t-shirt and undies. By the 3rd day he was peeing in the potty. It was a start and I felt okay sending him to daycare like that.
The thing that helped my daughter was a DVD called 'Potty Power' about a little girl princess who needed to learn. They may have one geared towards boys.
Hugs
M.