The aforementioned collisions problem lasted a few hours, but a slashdotting tapers off pretty fast so things were back to normal by around 5pm. I helped things out by temporarily turning off mail service on my old IP address.
Aside from slashdot we also got mentions in brainboy.com, GRYNX, C.Jack's Stay Focused, Random Thoughts from Joel's World, Peter Adams Weblog, MikeJuvrud, Reducing Privacy, and no doubt more to come.