i am on limu.lunarmania.com, and my site is not even live yet so I have zero activity and no I am not doing anything memory or cpu intensive, usually I am doing nothing but trying to access a page. I have done the steps you listed mitch and I the response I got back was
From your traceroute, it shows that you are timing out on the first hop. This is usually indicates that there is an issue with a router, a modem or most commonly virus scanning software blocking traffic.
Are you running Norton antivirus? This AV has been known to block traceroute attempts.
Again, I have no trouble with any other external site and I am not running Norton. Any other suggestions?