I should have added that Channel Catfish should readily take to pellet fish food.
On the trot-line thing, that would stink if your were not allowed to do that on your own pond.
If a tropy LMB fishery is a main goal, tanninbruce, then you probably don't want to introduce any other type of predator fish, or fish that will do any damage to the LMB's forage base.
Lusk wrote the book on it, and you can buy it through this site as ewest stated.
I'm pretty sure the basic formula is LMB, Bluegill, and then pellet feeding if can. This is merely the rough-out; so much more in the book.
If your pond was in existence before you bought it (meaning that you were not the original builder), then I would be on there being fish in there.