I just asked the same question.
Being an avid flyfisher for many years, mostly for trout, there's way too many things to consider. Water type, season, dry flies, wet flies, nymphs (we all like them), fish you're after, etc. We need more info.
For a kick, try salt water flyfishing. 48" 30# sand shark is a blast. Not near salt water? Any type of fishing can be done with flies. Try pike on a fly rod. Wow! 3' 15# bad boy, whew! Bass on flies are a blast.