Hey Chris,
I can't send you a link because I'm running the site on MAMP right now. It's all in my machine. This is what I added to custom.css
/* LOGO SPLASH */
#top .bg-logo, #top .bg-logo a{
text-indent: -9999px;
height:150px;
width:600px;
}
I also made the new logo.png 110 px high and 940 px wide, but in the css I cropped it to 600px in case I ever needed to use the ad banner again. I made the ad banner size 0px x 0px so it's still there but it doesn't show up.
Because the splash I did is white, you cant see if it was too small top and bottom, but I'd probably be able to fix that just adjusting the size of the logo container in that header area.
Incidentally, what does that value for the text-indent of -9999px correspond to? It's very strange...