Hmm. This sounds interesting. I think of myself as a half-decent voice actor, and I have a decent enough microphone. Fantasy roleplaying is generally what I do best, so there's a good chance that I'll be interested in whatever you have planned for this. That said, until I have more details on what kind of plot you have in mind, I can't fully commit. I'll wait for the OOC to reserve judgement, but until then, consider this your first nibble. :)
No matter what the details though, this is definitely a cool idea, and I'll be watching what comes out of it whether I end up taking part or not.