Rod weight depends on a lot of factors, but anywhere between 5-9at would certainly work. I've caught them on my 5wt a few times, but I feel much more comfortable using my 8wt (which is what I used today)
As for tippets, a 3.5x or 2x is best. Those things make runs like a freight train, so a strong tippet is always good.
Good luck and have a blast!