It really depends on your preference. I shoot aluminum, carbons, and hybrids.
As long as the arrow is long enough and will withstand the draw wieght, there should be no problems.
I myself lean more and more towards carbons. I do not use the ultra-light type of shafts though. They would fall into the med-heavy range. Somewhere around 8.8-10.5 grains per inch.
A decently sturdy arrow.
Has a flatter tragectory, but I hunt from the ground mainly, or in low branches in hedge rows.
I have still found no need for ultra-light shafts. You pick up a bit more speed, but I have never had poor penetration with any arrow regardless of the weight unless it was a bad shot.
Check the Trad archives for more info.
Or just go to Eastons website http://www.eastonarchery.com/ click on Products and go to Shaft Selection.
That will give you an idea of what you may want to start looking at. Same thing at the Beeman website.