Preheat oven to 450 degrees.
Cut the fillets in half.
In a shallow bowl, mix the crushed tortilla chips, chili powder, salt and pepper together.
In another bowl, mix the lime juice and oil together.
Dip the fillets in the lime juice mixture and then roll them in the crumb mixture.
Place them on a baking sheet sprayed with cooking spray.
When all the fillets have been coated, sprinkle them with the remaining tortilla crumbs.
Bake for 8 to 10 minutes or until crisp and golden and the fish flakes easily with a fork.
In a small sauce pan, warm the salsa over low heat.
Serve the fillets with warm salsa on the top.