Tools for sure,the good thing now is that alot of power tools are cheap and good quality.
If you have never done it before, start off on something small and easy, a basic square or rectangle shape cage, it will give you a feel for it and some good practice with the tools. It also doesn't as much if you stuff up, you will then know where you went wrong before you tackle something bigger.
If you make somthing big, or bank(multiple cages) double check all your measurements before you cut, well should do that anyway.
I love making cages from stratch it's good fun and gives you something to do when your bored....i've got three sitting in my garage waiting to be finished, but i'm lazy
It's not hard once you start.
