For any who have not yet seen it, be sure to check out Dallas' latest enty on the Dreamhost Blog.
I think it is great that such a candid, and professional, explanation of the recent issues many have experienced is publicly available. The post does a good job of detailing what happened, the corrective steps that have been taken, and future plans to improve stability and service. Additionally, you will find a logical explanation as to why some users had such a radically different service experience than did others.
It is a "good read", and sheds considerable light on some of the intricacies of web hosting. It also makes me thankful that I have Dreamhost taking care of these things for me, as opposed to wrestling with it all myself.