E-mail
Mowgli, could you send me an e-mail so we can 'speak' directly, there is some characters I'd like you to see and judge which one would fit into your world the best...
Contact me on s_hajnal.at.hotmail.com (replace .at. with @)
General ideas:
rune blade (old AD&D optional class), I'll send you document via mail, basicaly light fighter type with severe limitations on weapons and magic use, but with extra feats and powers in exchange...
[sblock=Description]
In the Great order of the priesthood of Mystra lies a sect of warriors who prowess in battle can rarely be matched by any. These great warriors are Mystra’s answer to the ever-growing misuse of magic and the balance that should be maintained with the use of this power. These great fighters are not only trained in normal combat but are experts of stealth and hiding and are in times diplomats of the will of Mystra. They are the most unique priest to have ever been originated at one time they are judge, jury, and executioner of the usage of magic and if it is being misused, they answer to no one save Mystra herself when she deems it proper for her direct intervention which is rare indeed.
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stone child mage/sorceror OR
stone child dwarf - this would be mineral genasi based, translated in HERO

, son of Earth Archon priestess and angel of stone, born in Aronal palace on the plane of mineral, raised in jungle/deep forest on Prime, he is maker of things and researcher of exotic materials (this I tried with JAlexander

, but his world does not support dwarves or mages)...GURPS made char
shadow bound assassin - long long ago, humans rebelled against bonding and took wrong turn to get their freedom. They are now free from bond, but are bound to shadows of oblivion...GURPS made char
wild mage - I'm not sure how magic works in your world and in HERO system in general, this would be human dubbling with lost and forgotten magic of old ones, with accompanied risk. If you accept it, I'd also request you use 1d10000 for wild surge effects

I have file somewhere -- D&D based
martial artist, master of 'Soulwind' - fantasy martial art created by me in GURPS rules, never playtested
Pale weapon master, Pale is race in GURPS, think of jedi weapon master for general feel, race is tall, pale and skinny, mind over matter
What about clerics, gods, other planes of existance, magic etc...