go take a look at Logo Design by Pixellogo - All Logo Designs.
I'm not proposing that you should spend $50 or whatever to buy a stock logo.
What I hope you'll see is that all a logo needs is to be GOOD ENOUGH (I know, I'm the guy who says good enough is a curse). Why is it okay to have a non-wonderful logo? Because the logo is just a placeholder. It gains value AFTER it hits the world, because people associate things with it.