Mac: When streamer fishing I like sink tip lines or intermediate sinking lines, currently I'm using a 250 grain sink tip on my 7 wt rod and an intermediate sinking line on my 6 wt. You can get by with a floating line but then I would switch to a weighted streamer, the whole idea is to get the fly down as fast as possible. When tossing streamers the fish will hit the fly hard, there is nothing dainty about it, so I wouldn't use 5x tippet. I usually use this setup: 18 inches of 20 lb mono followed by 18" of 10-12 lb mono. Black wooly buggers are a good start, but if you aren't getting strikes, then change the retrieve/pause rates and then try changing up the color.