How has the site been since its been back up?
A few occasional errors but nothing F5 didn't fix. Just the screwed up images/lack of tables seems to be the only big problem.
Thats what I figured. I think a large part of the slowdown is the billions of linked images on the equipment pages might generate alot of database queries. I might consider actually removing the pictures from there... or atleast one of the large/small pictures.