As Bronko said it best. Go to an established shop and let them set it up to YOU!!!! Not what ur buddy says he can do out in the garage with his shop vise and channel locks.
Are you planning on using a release or fingers? Something else to look at and plan for.
As far as broadheads go, they are like opinions, everyone has one. You will have to look at what you are wanting it to do and how much you are planning on spending. They can run from $40 for 6 to $40 for 3. Depending on what style you happen to prefer. They all work when applied properly. My personal choice are Easton Full Metal Jackets with 100grn GrimReaper RazorCut, 1-3/8ths cut. I shoot 65# with a Mathews Drennalin at 29" DL.
Arrows are another choice. You can go cheap or upto and past $150 per DZ depending on what you get. Thats where a shop is so helpfull. They can measure and match the arrows to you and your bow. Not what someone has sitting around that are either wrong length, wrong spine, wrong weight rating etc..
So that being said, get set up corrcetly in the beginning and you will spend more time in the stand instead of the shop!!! Enjoy!!!