Ok, it’s clean again. If anyone gets any spyware warnings let me know.
As always, you should have local spyware protection on any Windows machine, while Macintosh computers are not affected by this particular kind of bug (the one which was on this site). If you are running a Windows computer without spyware protection, I recommend downloading and running AdAware from Lavasoft, which is free and does a good job of cleaning up computers.
It looks like my host is primarily getting hacked in the overnight hours.