It agree, Saruman didnt need Grima to convince or decieve the minds of its foes.
All those four images of him been charismatic and benevolent are cool, Saruman could access a special palantir only for his voice.
And yes, i know mouth of sauron would be very similar, but we all fans can imagine what voice powers we can give to him.
Here are some ideas:
http://i64.tinypic.com/6izfd2.pngSo you have come here for information? : All the enemy units and heroes loose their sight for a short time.
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http://i67.tinypic.com/zx0brl.pngCannot we take councel together? : Saruman uses his most mellow voice against his foes. Saruman does not recieve any damage for a medium time.
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http://i64.tinypic.com/6sfcj6.pngYou have fought many wars and slain many men: The selected enemy heroe becomes hostile towards his allies for a short time.
This could be a very interesting upgrade to Saruman.
Also i noticed that all the Istari, save Saruman got their respective titles. Hope it can be fixed!
Greetings ^^