I fished for fly's one time and caught a lot more then I wanted. In fact when I got home the wife would not let me in the house. :lol:
OK, On the serious side. We have a lot of folks on here that will offer a ton of information about your question.
The best thing is a fly rod , light weight and about 8 feet , a simple reel to hold the line with the leader and some flys to use.
I have found that here in Florida a spider or bumblebee is the best , the spider will get the gills and the bumblebee will get both bass and bream.
Believe it or not , I have bone fishing reels and rods for salt water and some for trout in the mountain streams. While poking around in wally world I located a light action fly rod for $20.00 and it is what I use for sunfish on the local river and lakes. A reel (not an expensive one ) will be about the same. The thing that will cost is the fly line , I like the forward taper ones , they make it easy to cast.
I would say for about $100.00 you can get the basic outfit ( rod , reel , fly line , leaders ) including some flys to use.
Personally I like tying my own , they cost a lot less after the initial purchase of the equipment and are a fun hobby to create when the weather outside is miserable.
Chuck.
For gills the foam spiders are deadly , they love them. Just flip them out by a illy pad , let it sit for a minute and then give it a slight twitch and look out , the water will explode.