Howdy! Scientific Anglers, Reddington, and a few other companies sell rod/reel/line packages. These are pretty decent outfits usually cost around $120 bucks. For trout fishing an 8 foot long 5 weight is a good choice. I bought a 5 weight Reddington outfit from Cabela’s and it’s been a lot of fun to use.
Flies….oh man there are a million different flies. But you won’t need most of them. There are different hatches going on at different times of the year and that will affect what flies you need. There are flies that are tied to represent a specific species of mayfly at a specific stage of development….like a Blue-winged Olive Emerger pattern….and some guys really get into that. They’re also the guys with 6 fly boxes crammed full of flies. The other school of thought is to use more generic bugs in a few sizes like #14-#18. Some fish might turn their noses up at that but you’ll still catch a bunch. Flies like the Adams, the Adams Parachute, Elk Hair Caddis, Grasshoppers, Ants, Hare’s ear nymphs, Pheasant tail nymphs, and a few streamers like Wooly Buggers or Grey Ghosts.
If there’s a fly shop in the area that’s a good place to start. they’re always happy to sell a few flies and most shops have a pretty good handle on what’s working lately.
Good luck and have fun!
SR