If you can manage to maintain aggro on the Necro (not too terrible hard) while boxing you have a pretty solid kiting duo right there. Only downside is that you're pretty limited when it comes to dungeons duo'ing.
That aside you have a crapton of DPS and quite some utility - I knew people who played that sorta combo for awhile and really enjoyed it.
Yep, get used to /pet taunt off and learn to love kiting around on your necromancer. I've seen this work well for some people. Really though, you can do whatever you like on SoD. I happen to know a Warrior / Wizard who somehow did OK. syduck:
if you're talkin about dil, he's always had healers around, but when they are not around he just bugs the hell outta me . In short, i dont recommend war/wiz unless u have friends.
Necro/Mage works pretty well, your mage becomes a artillary platform to finish off mobs, while your necro does his kite thing with the help of a mage fire pet running behind with your skeleten pet.