XWARREN,
Wanted to provide some observations of 3.5 final.
I have a Wiz, Clr, TN (3,3,5). I use the create undead ability of my TN and get A Mohrg. The thing is, it acts like a companion. Meaning that if it is killed it spawns back at the temple like any compion. You cannot rehire it though. So now they are starting to stack up (I have four at the tempe just sitting around). Also, when I sleep, the Mohrg heals to full HP by resting.
It just doesn't seem correct that this should be the case.
One more thing, even though the True Necro gets the create Undead ability at 2nd level, the ability only shows undead starting at 4th level of TN (if you right click on the ability).