[Wrana]

She's costly enough to not use her just for PD raiding.
You need some armor, some regeneration - always to be used with non-disposable thugs/SCs if only to prevent afflictions and reinvigoration is always needed unless you use non-casting 0-encumbrance thug. So a minimum is about what BD suggested, subject to which gems/mages you have aplenty and whether you need any elemental resistance(s). I wouldn't advice using heavy armors for her as it makes her tire faster - especially if you want to cast Shock Waves.
As for Storm - Staff is better and she doesn't really need either shield or AoE weapon.
For MP she will also require high MR for even if you just use her for PD raiding an experienced opponent WILL subject her to a number of resist-or-lose effects.