Caster shield - Shammy/Pala
Tanking Shield - Pala/War
Boots - DK/Warr/Pala
Stam trink - DK/Warr/Pala
Heal trink - Shammy/Druid
now they have gear to their offspec and can start some real instances as Tank/heal. But it should be Normal only or HC dropping 333 items, because you need to learn how to go through dungeon and not "WotLK style zerg" whole instance.
I would personally see it positive because not all ppl are leveling in the tanking/healing spec. I leveled my DK as Unholy DPS and when hitting 85 i had fairly low Tanking gear so im grinding tanking gear in normals now which i find not all times ideal (some leveling DPS are even more terrible than in HC in scale).
---------- Post added 2011-02-06 at 11:15 AM ----------
there used to be 10 mans dropping D1/D2 gear, that could fix it...