greenhead, so far everyone's advice has been solid. As tdb said, they are kinda "idiot proof"-as long as it's in the water, it's probably doing something fish might like. The key to being good with streamers is being versatile. When you first decide to put a streamer on you want to start "prospecting" by mixing up as many retrieve/presentation styles as you can until you figure out a pattern. Swing it like a wet, twitch it, bounce it off the bottom like a nymph, strip it fast, strip it slow, lysering lift, and any other conceivable presentation. If you notice 2 or more fish hit it with the same presentation style, then focus on that style, but don't neglect throwing in some of the others on ocassion still. When picking out a color, a lot of guys say bright day=bright flies and vice versa. Forget the 5x. The minimum you probably want is 4x, but most of the time you'll want 2 or 3x. If you're fishing a big river, you might even need heavier than 2x, but for pa, probably not. Even a 10-12 inch fish can almost rip the rod out of your hands sometimes, which is why i like streamer fishing. Most people think of trout as shy or timid and fish with size 18,20 whatevers. With streamers you get to see trout's "other side"-brutal, vicious, predators. One last piece of advice, if a fish bats at it and you miss him, let the fly dead drift and watch your line/leader for a strike. Tight lines!