You sound great on MySpace. You have a fine voice!

My otherwise worthless opinion: I hate it when singers put a sob or break in their voice to emphasize emotion and sincerity. The words and the music do that.

The vocal tricks can work in pop music because there's more artistic distance between the singer (with his big or electrified band) and the audience, who have to be prodded. With the solo or small-group acoustic music you play on MySpace, you're already sufficiently intimate with the audience: one needn't try extra hard to win them over, especially with a natural voice as good as yours.

Just my two cents. Ignore ad lib. Good luck!