The big question, as Mike asks, is "what format?" And you might add, "how large do you want to print?"

If you're enlarging, say, Xpan or Horizont negs or any format up to 6x12cm, it's easy. Up to about 4x10", it's a matter of having a bigger enlarger, which takes up more space and is harder to find, and involves a bit more commitment, but is manageable. Larger than that, like 7x17" or 8x20" or Cirkut formats are usually contact printed, which is also not terribly difficult--in some ways easier than enlarging, and nothing beats a big contact print. Enlarging from formats like 7x17" and larger is a more complicated matter that may involve some custom equipment.