Average Spellpower for level?

[Drommon]

Hello,

I am looking for a resource that can give me an average spellpower based on level for a class. I am getting the feeling that the dps portion of my party should prioritize spellpower above all else in their gear selection. I am basically having problems with the bosses in instances. I usually run out of mana. Tried fixing it with pots but that just delayed the inevitable. Tried respecing my talents. I am at my withs end trying to get my dps battery to be more mana efficient while gaining dps. I just want to know if I am going down the right avenue by prioritizing spellpower.

Is there a resource that can tell me what the average spellpower per level of character is?

I would imagine that this data would come from averaging spellpower from all related toons. I want to see if I am really lacking in this area. My level 71 casters have 550-650 bonus damage and do an average of 800 dps each. Is this enough?

Drommon