Try opening it in IE6, the page continually reloads and comes up with an error message.

I would have said it was a javascript problem, but you dont seem to have any odd JS mods, so that rules this (http://support.microsoft.com/default.aspx/kb/927917) bug out.

The interesting thing is that product pages load in IE, in fact everything but the home page loads.

I think it might be your flash header; try remofing that and see if your site loads.