Put links in your overview. Too many words, worthless graphics and banners. Your main page is the doorway to something special. Don't try to tell your visitor everything on that page. Make another page, or two, or three to deliver your message on a feature and benefit.
Graphics are as controversial as anything can be.
Use graphics that make a point about what you are saying. Not just because you think they are cute. The only banners that should be on your main page are your logo and for your Ezine subscription. Someone els's banner will only let them steal your visitor. Make a banner exchange page.