I think I can help you here, since I live in the area.
1. I highly recommend East Orange Shooting sports on Forsythe Ave. They have a nice range and store. They rent both handguns and rifles. $10 for pistol, and $14 for rifle for the whole day, and you just buy the ammo there. Nice people and range is well lit and clean.
2. Shoot Straight has a couple of locations. The closer one is in Casselberry on 17-92. Very nice range as well. $10/person for pistol and $15 for rifle but the rental is hourly. The plus side to Shoot straight is that they allow rapid fire, which is not allowed in East Orange.
3. Gander Mountain in Lake Mary is also a nice range. I have been to the store but never shot at their range. Price for the range is a bit more at $25/hr but it accomodates up to 3 people.
Hope that helps!