well, if you already fly fish i would suggest sticking with that if you have the hang of it ive just recently got into steelhead fishing but ive gained a lot of general knowledge about em. so ill name off some flies for steelhead and then gear,, flies: egg patterns ,nymphs , leeches(articuated,egghead,bunny) shrimp patterns those are a few,, and for gear i would use a 1/4 float with an inline sinker and a jig or a yarn ball,,, micro jigs<---- -Custom UV Steelhead Jigs- Steelhead Stalkers Online Store or just 1/4 marabou jigs in pink,black, black &red (nightmare) purple ,orange,peach and you can't go wrong with float fishing or drift fishing a pink worm. and drift fishing can be productive,,a little bit harder to get the hang of ,, if you decide to drift fish use small corkies in white,pink,purple,black,orange..theres a lot of colors that work.. tie an egg loop knot with it to swap strips of yarn if the colors you are using won't get a strike i suggest using pop a top yarn for yarn balls and drift fishing ---->Home you can find knot tying vids and stuff on youtube good luck,
NOTE: i left leader lengths and stuff out i'm not the best with that i usually just guess and experiemnt until i get the legnth right
brandon