Congratulations on the new little addition!
Dwarf hamsters are so much fun, I got my dwarf hamster Munchie last summer.
It looks like you have everything you need.
Here is a hamster forum that can help you if you have more questions.
Hamster Hideout
CathyB, Munchie loves the spray millet, I borrow a few chunks from my parakeet's supply and Munchie eats it like corn on the cob.