Most people who have taken a few shots at fish want a dedicated bow(s) for bowfishing. While you can use any bow for fishing, the setup and accessories are completely different. You won't want to keep changing your rest back and forth from deer to fish and back again more than about once, especially if you like good arrow flight and care to tune for your deer arrows past the point of 'good enough'.

Can you succeed with a drum reel. Surely. The type of reel you choose to use does not affect your ability to shoot fish, only how fast you can get back in the game after taking a shot. I recommend the hand wound drums and AMS retrievers for beginners since they are practically foolproof.

The spincast reels are very fast and give you more leverage to fight big fish, but require that you remember to push the bale release button before each shot or the reel hangs on to the line and your arrow can end up leaving without the line attached. It can be tough to get them back when that happens. The faster reels are always more convenient to use, but only really become a major factor in competition when you have lots of shots to take, and want to boat as many fish as you can in a short period.

Always bring a spare arrow or two no matter what kind of equipment you have. If you are just walking the shore, you can leave it in the car, but have one with you. Rocks and submerged logs will claim an arrow of yours eventually. It will probably be on the day you leave your spare at home and there is a 25 pound carp laying on the surface 15 feet away.

Most bowfishers use fingers for fishing even if they have a release for other hunting. NoGluvs are popular, and so are the synthetic leather Mechanix gloves which do not bleed color when they get wet the way leather can, anddon't get as crunchy as the real leather ones.