jross, don't get overwhelmed by it all. Like Buzz says, keep it simple at first. If you see flys on the water or on the air, try to catch one or get a good look at it, particularly the underside of the fly. Then root around in you box for something that matches the size and color for dry flies. For nymphs, the fly is going to be slightly larger than the dry. You'll eventually learn your bugs. At first, I suggest you learn the difference between caddis, stoneflies and mayflies. If nothing is on the water, then prospect with some type of attractor. Fishing a matching fly becomes more critical when the trout are actively feeding. Then your success goes up when you can match the hatch. Regards, Silvercreek
"Here fishy fishy."