Extending exceptions.. and loading libraries?

[eluser]awpti[/eluser]
I've extended the Exceptions so I could override the show_404 method.

After doing so, I noticed that no Libraries or.. well, anything is loaded. So, I tried the ol' get_instance() and that didn't work. I suppose the exception handler is being called before get_instance exists.

Is there any way I can load a few libraries to handle a 404 page? I'd like to, mostly, load the View library (not the internal one - Coolfactor's )

I've poked around but haven't found much worth following.