for the best place, go to neah bay. don't know your boat size, but you can fish big or small at neah bay.

try an 8 wt, load up your boxes with chartreuse and white flashtail clousers, and fish a 250-350 grain head (the rio striper lines are imo the best). if you want to fish a 6 wt. i'd concur with sparky's recommendation of the deep 7 line by rio (although the shooting head setups are better casters in the wind, especially when using a water haul). reels don't really matter, but a decent one that can hold up to the abuse boats and salt put on a reel is preferable.

where to fish? check out the close in rips off waadah island and if it's calm work your way out to the whistle buoy n. of tatoosh island (look to be .5 to 2 miles from land). look for the fastest current, set up to drift through it, and cast flies (you asked about flyfishing, so i presume you don't want to gear fish with a fly rod... oh, sorry, i mean bucktail <G>) if you're having a hard time locating fish, drift around casting and retreiving flies (a little wind to speed up your drift can be helpful, especially when the rips die down) because there's no better way to learn fly fishing for coho than to spend your time doing it... the more you cast the less you will rely on trolling... and you will eventually not troll at all.

good luck,

chris