I work in Rochester and we got training from our Anixter representative, Jim Byron 585-426-3440. I am pretty sure he is the rep for Buffalo as well. He is extremely helpful with planning and design too. Anixter sells FO cable, NIUs, enclosures, and the tool kit with the Unicam tool. He even lent his tool kit to us for our first two installations.
In NY training is also usually available at community colleges or BOCES too, but you have to pay for those. Jim taught us to use the Unicam tool in a half hour.