Fortunately we weren't attacked. Unfortunately Dreamhost disabled my account
Basically we were on a shared server with dreamhost (on the strictly business plan), and our websites were using > 25% utilization of the server and apparently that's just too much.
They've been notifying (automated messages) me for a while now (203 days), and I had responded to them several times telling them to move me to a dedicated server. On Monday Oct 24 a support rep emailed me saying that I had 24 hours to respond or the account would be disabled. Unfortuantely this has been an extremely busy week at work, so I didn't see the email until Tuesday night. From there it took them about a day and a half to re-enable my account (and all services should be back online).
By sometime next week we should be on a dedicated server plan (New Moon), and I paid for a year so we shouldn't see troubles like this for a little while...
Sorry for the inconvenience!