Stick Slinger,
Carbons are great but there is a reason that you are bending and breaking your aluminum arrows. Thats the first thing you have to look at. It may be your target or your back stop.
One thing nice about aluminum arrows,they can be bent back close to specs if you use an arrow straightener. Some pro shops can do that for you if you can't.
Problem with carbons - if you do hit it good, you may get a crack in the shaft and not know until it splinters out of your bow. Plus carbons will cost you more but prices are coming down.
Look at why your present arrows are doing what they are.
I've wasted a lot of arrows in my day. Getting better with practice. I use ACCs, which is an aluminum carbon composite. Better strength than pure carbons but can be straightened out if not too bad. Still need to look for cracks.
Hope this helps,
Oneida Shooter<img src=icon_smile_big.gif border=0 align=middle>