The best weapons and equipment are the same, regardless of class.
Even with a mage, you should be looking to get the Dragon Armour set and a decent sword as a backup weapon in case anything gets too close for comfort. That and a bow for things that are a long way off when you're low on Mana.
Good equipment with many Charm slots will allow you to build horrendous stats regardless of class, so you won't lose out on Intelligence either.
Most useful direct damage spells are Meteor Strike, Lightning Bolt and Deadly Disks. Elemental Strike is also good, particularly against tight clusters of foes.
Make sure you get Alchemy lvl 1 to make Restoration potions, as your Mana will drop like a stone.
