SIte Admin Works fine but the Main Site Locks/ Will Not Load

I am building a MU Site that is Multi-DB and has almost every high end WPMUDEV plugin on it. Everything was going well as I loaded a ton of different plugins, but then I went to load my site to take a look at the design and how things were going and the load bar showed the site load about half way and then it completely locked the page and my computer up. I did this around 4 times now trying to figure out what the problem is. I was also trying to use the Catalyst theme, but even after I switched back to 2010, it did the same thing.

Has anyone seen this before or have an idea what could have caused this before I start to undo all the plugins and themes I have installed already?

I have attached a snapshot of my current plugins and which ones are active here as well.

Thanks.

Mike