I think if you go with the same image, just make it a little less pixelated. I mean some blur to an image can be nice, but it's difficult to even discern what you're looking at with this one. I assume it's a pizza slice only because of the title of the website.
It's very impressionistic, but like I said, I personally don't get fond pizza memories looking at it.
And Steve, personally I don't think anyone really cares beyond a doubt what the page looks like or how it feels. It's all about the content for me! I think you do an excellent job here and these boards are one of the best to navigate and post to IMO. Thanks for all your hard work, I appreciate being able to come here and interact with all these great people.