Re: what do i need?
Figure out what critter/s you want to trap and then buy some books on those critters. Most books will give you a good idea of what you'll need. I would suggest getting a couple of catalogs from different dealers and then you'll get an idea of prices. Minnesota Trapline Products, FNT,Cumberland;s Northwest trapping supply all have free catalogs.
Basic equipment -
Dirt Sifter, Hammer (for driving stakes) I have a "groundhog" it's 3 tools in one, Packbasket, TRAPS, TRAPS AND SOME MORE TRAPS, Lures for specific animal, trap tags.