Northern California is blessed with wonderful fishing waters. Folsom is not a bad jumping point to get to other places. Within two hour's drive, you can be fishing lots of different waters for trout. When Steelhead are in the American, you can be on the water within 15 minutes.
Your rod and reel choice is going to be dependent on where and what you want to fish. Big fish in big water means heavier rod. Small fish in smaller water means lighter rod.
The most popular general purpose setup is a nine foot five weight. It can handle most trout needs for small streams, big rivers, and lakes. It will work well for smaller bass and panfish. It can throw moderately heavy streamers, but it can gently present small dry flies. Most modern five weights have the backbones to handle big trout just in case you hook up with Homie.
As for specific rods and reels, I can suggest some, but I won't. Skip the box stores or the tackle shops with small fly fishing departments. Visit the specialty fly fishing retailers. There are four of them in the region that can show you what you need:
American Fly Fishing Company - Sacramento
Kiene's Fly Shop - Sacramento
Fly Fishing Specialties - Citrus Heights
Orvis - Roseville
These shops have educational programs, as well.
If you are looking for a fly fishing social group, look up Granite Bay Flycasters. It has programs for beginners to experts.
Here is a picture of an East Carson River Rainbow Trout.
Good luck with your fly fishing endeavor.