well youmade the most important and best decision already......Mathews! Everything else is gravy! Mine is set up with a Whisker Biscuit rest and older Tru-Glo 5000 sight (older all metal one) and a Mathews 2 piece quiver (hightly recommended and worth every penny). I also made my own STS type string suppressor. You can search for the post, it was pretty easy and cheap to make.
I'm shooting Easton Axis ST 300's out of mine with pretty good results thus far. Congrats on the new bow!!!
Edit: Mine is a 2007Mathews Switchback LD (32in draw)