Just make sure to match your speed and arrow weight to what you are shooting as you will need pretty heavy penetration with a hog. Broad heads are what you will want to shoot so that is correct.
Honestly a decent budget on a bow is going to vary on how much money you make in a year lol.
You can get a pretty decent set up out the door for 600 but I would put another couple hundred into it at least.
What do I NEED other than the bow and the arrows?
do get the essentials like good trigger, peep sight, stabilizer, etc so you can make a good clean shot- for the sight I like only one or two pins ...get more and it will just clutter you up I think. Save money and go a couple times with just those basics and you will find you don't really need much else...except a good sharp knife and a range finder to practice with as well as hunt with...