Pagan have demonstrated that their modern conspiracy Cthulhu setting has a longevity beyond the now receding millennium angst of the original sourcebook.
Eyes Only starts with a reprint of the first chapbook concerning the Mi Go. I have the original chapbook but it is really hard to get hold of so this makes the book a must on its own.
The Philadelphia Experiment is given a Cthulhu slant that is a great read .
Having the pdf of this book is a boon.