I just bought a new Baby G force Bow! It is set a t 70lbs and 29 inch draw! What size and type of arrows do I need to shoot?
Where should I buy them? I want an Arrow to start Practicing for deer season!
Should I go with Carbon or Aluminum?

Alot of good questions. Let me start off by saying that just judging by your choice of bow, draw weight and draw length that you are going to need a relatively stiff arrow. If you go with an ICS style carbon arrow then I would probably suggest a .340 or .400 spine. .340 would probably be the better choice considering how most conventional single cam bows (like your Baby G) prefer a stiffer arrow.

My suggestion? Any of the Easton or Beman ICS carbons in a size 340.

Hunter or target shooter? This could get as interesting as asking for a bow.
Any how I am a hunter first and shoot a solid 245 fps out of the mq1 @ 70#... shooting the CX hunter 300 series it is a tuff arrow a bit pricey
but one of the straighter carbons and "middle of road weight" enough to get those longer 3d targets with out to much kentucky windage.
thanks