1st of all the mage training arena is for MEMBERS ONLY! So if you are a member and you really want to be a mage then yes.
As of (9-7-10), free to play players have not been able to enter the "mage arena" or the "mage training arena".
none...
you don't, you get it at the mage training arena
it depends on where u are
North of Duel Arena Waiting area, you will come across the mage training arena talk to the guy there, he should give you one.
You can access the Mage Arena by going through the entrance next to the Duel Arena Challenging House.
Above the Duel Arena in Al-Kharid.
Some options include magic combat (which is now much cheaper than it used to be), doing high alchemy, and training in the Mage Training Arena.
Yes you can smith just go to wilderness near mage training arena and you can smith. or Lumbridge, I have 99 mining and smithing.
Oh, there are lots of ways. A good option for members is the Mage Training Arena. You do need an initial investment of about half a million coins, for the required runes. You do some activities, gain "pizazz points", then trade those for valuable items which you can sell on the Grand Exchange. Please note that the Mage Training Arena is just one of hundreds of ways to make money.
you get the staff in the mage arena after going throughg some battles, once you get the staff you must cast the spell 100 times before using it outside the mage arena.
By using that exact spell inside the mage arena 100 times, it doesn't matter if it misses inside there, as long as you cat 100 times you can then use it outside.