I started dual boxing it last night. Its fairly difficult but its possible. Yes movement can be fairly crazy at times, and this can be very frustrating to people without patience. I running a 12 Knight with a 20 Templar at the moment.

I may play the game similar to the way i multiboxed EQ1 back in 2000. Basically the pocket healer with tanker/dpser. most of the ability heals on the staff are area targeted, so i can keep the templar at a distance and use ranged abilities to assist my other character.

Using ISBoxer instant swap helps a lot with this so i can switch to my second do what i need to do then swap back. i currently have their movement's sync'd so i can mount and dismount and move (with some hindrances whne i turn), but all in all its manageable.