Rods and Reels:
A 9-foot, 5-weight fast action rod is a good all around choice for these large rivers. Sage, Scott, Powell, Thomas & Thomas. There are many good rod companies. Buy the best you can afford and make sure the maker has a good warranty program.
Leaders, Tippets, Flies:
Several 9-foot, 4X leaders and spools of 4X, 5X and 6X tippet material should cover most of the requirements. If you are using a fast action rod be careful if you are using 6X or 7X tippets.
Waders and Wading Boots:
I personally prefer breathable waders and a good pair of wading boots with good ankle support and a solid toe guard. I can wear the same pair of waders in the middle of summer as I do in the winter and regulate my body temperature by layering my clothing.
Clothing, "Be ready for anything":
In this part of the country it can be 85 degrees one moment and hailing on you the next.  Be prepared for various conditions. On the same float down the river I may start off with polar fleece pants and a pullover worn over a Capilene shirt with breathable waders and a Gore Tex jacket. During the middle of the day I may wet wade in shorts and a tank top. That afternoon there may be a few thunderheads moving through the area that calls for that Gore Tex jacket and waders again. The two things that tend to get cold are your feet and your hands.

The following list should help. :

  • Breathable waders and a pair of wading boots
  • Several pairs of shorts
  • Thongs or Sandals
  • Gore Tex Jacket
  • Capilene underwear
  • Fleece pullover or jacket
  • Thin and when colder heavy fleece pants for under your waders
  • Wool socks with liners
  • Polar fleece gloves
  • Fishing vest
  • Polarized sunglasses
  • Long-billed ball cap
  • Lots of sunscreen
  • Insect repellent
  • Camera with watertight carrying bag
  • Flashlight