I noticed Magician was on here but no one had even mentioned the crossover so i thought i would stick it up in case somehow people who enjoyed Magician had missed it.
Daughter of the Empire (and then Servant of the Empire and finally Mistress of the Empire) are set concurrently with Magician but on the homeworld of Kelewen (the invaders of Pugs homeworld)
They are set from the point of view of one young woman who suddenly becomes the leader of her own house (think Clan or Political power) - you might bump into some of the characters you have met in Magician (Laurie was a slave on this world for a time, as was Pug) but the story completly stands alone. (Though you do get to see Milamber get a little annoyed if you can place that from the other novels without me giving anything away ... nice to see the same situation from a different point of view!)
If your a fan of Magician then i suspect you would enjoy these 3.
Co written by Janny Wurts with Raymond E Feist