what buffs stack pleaseFollow

Well, for shamans:

Infusion of Spirit will stack with str, dex and stamina buffs. Harnessing of Spirit will not.

Talisman of Altuna will stack with HP buffs (Temp, etc) Harnessing of Spirit will also stack with HP buffs.

Primal Essence Will stack with most stat buffs (IoS/HoS/Fo7)

Rage Line stacks with most stat buffs.

Others:

Brell Line For paladins stacks with everything I can think of.

Aura of the Crusader Will stack with everything except Pot9/PotC

Divine Purpose Will stack with HP regen buffs

Well, Paladin anyway. Play a paladin and shaman so those are the ones I know :)

Or the BL infusion of spirit spell (I think that's the one), which is all around better anyway. The ranger/pally spells are about whether you'd prefer hp or atk (tanks take hp, casters take hp, everyone else take atk).