Yessir!? Hammond Mfg. and DigiKey are great resources.
I've ordered a couple of their Peter Dahl transformers, and they make a first-rate product! Pricing was fair enough, and they shipped quickly.
The listing of transformers is extensive, and the documentation is great. Find the one you need, copy & paste the P/N into DigiKey's main site to order, and you're done (well... after you pay).